diff --git a/deegree-core/deegree-core-base/src/main/java/org/deegree/filter/xml/Filter200XMLEncoder.java b/deegree-core/deegree-core-base/src/main/java/org/deegree/filter/xml/Filter200XMLEncoder.java
index 296045c594..9a85da357c 100644
--- a/deegree-core/deegree-core-base/src/main/java/org/deegree/filter/xml/Filter200XMLEncoder.java
+++ b/deegree-core/deegree-core-base/src/main/java/org/deegree/filter/xml/Filter200XMLEncoder.java
@@ -73,6 +73,7 @@
 import org.deegree.filter.comparison.PropertyIsLessThan;
 import org.deegree.filter.comparison.PropertyIsLessThanOrEqualTo;
 import org.deegree.filter.comparison.PropertyIsLike;
+import org.deegree.filter.comparison.PropertyIsNil;
 import org.deegree.filter.comparison.PropertyIsNotEqualTo;
 import org.deegree.filter.comparison.PropertyIsNull;
 import org.deegree.filter.expression.Function;
@@ -123,14 +124,15 @@ public class Filter200XMLEncoder {
         spatialOperatorTypeToElementName.put( SpatialOperator.SubType.EQUALS, new QName( FES_20_NS, "Equals" ) );
         spatialOperatorTypeToElementName.put( SpatialOperator.SubType.DISJOINT, new QName( FES_20_NS, "Disjoint" ) );
         spatialOperatorTypeToElementName.put( SpatialOperator.SubType.DWITHIN, new QName( FES_20_NS, "DWithin" ) );
-        spatialOperatorTypeToElementName.put( SpatialOperator.SubType.INTERSECTS, new QName( FES_20_NS, "Intersects" ) );
+        spatialOperatorTypeToElementName.put( SpatialOperator.SubType.INTERSECTS,
+                                              new QName( FES_20_NS, "Intersects" ) );
         spatialOperatorTypeToElementName.put( SpatialOperator.SubType.OVERLAPS, new QName( FES_20_NS, "Overlaps" ) );
         spatialOperatorTypeToElementName.put( SpatialOperator.SubType.TOUCHES, new QName( FES_20_NS, "Touches" ) );
         spatialOperatorTypeToElementName.put( SpatialOperator.SubType.WITHIN, new QName( FES_20_NS, "Within" ) );
 
         temporalOperatorTypeToElementName.put( TemporalOperator.SubType.AFTER, new QName( FES_20_NS, "After" ) );
-        temporalOperatorTypeToElementName.put( TemporalOperator.SubType.ANYINTERACTS, new QName( FES_20_NS,
-                                                                                                 "AnyInteracts" ) );
+        temporalOperatorTypeToElementName.put( TemporalOperator.SubType.ANYINTERACTS,
+                                               new QName( FES_20_NS, "AnyInteracts" ) );
         temporalOperatorTypeToElementName.put( TemporalOperator.SubType.BEFORE, new QName( FES_20_NS, "Before" ) );
         temporalOperatorTypeToElementName.put( TemporalOperator.SubType.BEGINS, new QName( FES_20_NS, "Begins" ) );
         temporalOperatorTypeToElementName.put( TemporalOperator.SubType.BEGUNBY, new QName( FES_20_NS, "BegunBy" ) );
@@ -138,11 +140,13 @@ public class Filter200XMLEncoder {
         temporalOperatorTypeToElementName.put( TemporalOperator.SubType.ENDEDBY, new QName( FES_20_NS, "EndedBy" ) );
         temporalOperatorTypeToElementName.put( TemporalOperator.SubType.MEETS, new QName( FES_20_NS, "Meets" ) );
         temporalOperatorTypeToElementName.put( TemporalOperator.SubType.METBY, new QName( FES_20_NS, "MetBy" ) );
-        temporalOperatorTypeToElementName.put( TemporalOperator.SubType.OVERLAPPEDBY, new QName( FES_20_NS,
-                                                                                                 "OverlappedBy" ) );
-        temporalOperatorTypeToElementName.put( TemporalOperator.SubType.TCONTAINS, new QName( FES_20_NS, "TContains" ) );
+        temporalOperatorTypeToElementName.put( TemporalOperator.SubType.OVERLAPPEDBY,
+                                               new QName( FES_20_NS, "OverlappedBy" ) );
+        temporalOperatorTypeToElementName.put( TemporalOperator.SubType.TCONTAINS,
+                                               new QName( FES_20_NS, "TContains" ) );
         temporalOperatorTypeToElementName.put( TemporalOperator.SubType.TEQUALS, new QName( FES_20_NS, "TEquals" ) );
-        temporalOperatorTypeToElementName.put( TemporalOperator.SubType.TOVERLAPS, new QName( FES_20_NS, "TOverlaps" ) );
+        temporalOperatorTypeToElementName.put( TemporalOperator.SubType.TOVERLAPS,
+                                               new QName( FES_20_NS, "TOverlaps" ) );
     }
 
     /**
@@ -243,6 +247,9 @@ private static void export( ComparisonOperator operator, XMLStreamWriter writer
         case PROPERTY_IS_NULL:
             export( (PropertyIsNull) operator, writer );
             break;
+        case PROPERTY_IS_NIL:
+            export( (PropertyIsNil) operator, writer );
+            break;
         default:
             throw new IllegalArgumentException( "Encoding of operator subtype " + operator.getType()
                                                 + " is not supported yet!" );
@@ -440,6 +447,13 @@ private static void export( PropertyIsNull operator, XMLStreamWriter writer )
         writer.writeEndElement();
     }
 
+    private static void export( PropertyIsNil operator, XMLStreamWriter writer )
+                            throws XMLStreamException {
+        writer.writeStartElement( FES_20_NS, "PropertyIsNil" );
+        export( operator.getPropertyName(), writer );
+        writer.writeEndElement();
+    }
+
     private static void export( XMLStreamWriter writer, And andOp )
                             throws XMLStreamException, UnknownCRSException, TransformationException {
         writer.writeStartElement( FES_20_NS, "And" );
diff --git a/deegree-core/deegree-core-base/src/test/java/org/deegree/filter/xml/Filter200XMLEncoderParameterizedTest.java b/deegree-core/deegree-core-base/src/test/java/org/deegree/filter/xml/Filter200XMLEncoderParameterizedTest.java
index 0b62fa904b..17b2e7f850 100644
--- a/deegree-core/deegree-core-base/src/test/java/org/deegree/filter/xml/Filter200XMLEncoderParameterizedTest.java
+++ b/deegree-core/deegree-core-base/src/test/java/org/deegree/filter/xml/Filter200XMLEncoderParameterizedTest.java
@@ -86,11 +86,12 @@ public static List<Object[]> data()
         filterTests.add( new Object[] { "testfilter5.xml", asString( "v200/testfilter5.xml" ) } );
         filterTests.add( new Object[] { "testfilter6.xml", asString( "v200/testfilter6.xml" ) } );
         filterTests.add( new Object[] { "testfilter7.xml", asString( "v200/testfilter7.xml" ) } );
+        filterTests.add( new Object[] { "testfilter8.xml", asString( "v200/testfilter8.xml" ) } );
         filterTests.add( new Object[] { "aixm_by_gml_identifier.xml", asString( "v200/aixm_by_gml_identifier.xml" ) } );
         filterTests.add( new Object[] { "aixm_custom_geometry_bbox.xml",
-                                       asString( "v200/aixm_custom_geometry_bbox.xml" ) } );
+                                        asString( "v200/aixm_custom_geometry_bbox.xml" ) } );
         filterTests.add( new Object[] { "aixm_custom_geometry_property.xml",
-                                       asString( "v200/aixm_custom_geometry_property.xml" ) } );
+                                        asString( "v200/aixm_custom_geometry_property.xml" ) } );
         filterTests.add( new Object[] { "aixm_timeinstant_begin.xml", asString( "v200/aixm_timeinstant_begin.xml" ) } );
         filterTests.add( new Object[] { "temporal/tequals.xml", asString( "v200/temporal/tequals.xml" ) } );
         return filterTests;
diff --git a/deegree-core/deegree-core-base/src/test/resources/org/deegree/filter/xml/v200/testfilter8.xml b/deegree-core/deegree-core-base/src/test/resources/org/deegree/filter/xml/v200/testfilter8.xml
new file mode 100644
index 0000000000..53fb059b89
--- /dev/null
+++ b/deegree-core/deegree-core-base/src/test/resources/org/deegree/filter/xml/v200/testfilter8.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<fes:Filter xmlns:app="http://www.deegree.org/app" xmlns:fes="http://www.opengis.net/fes/2.0" xmlns:gml="http://www.opengis.net/gml"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/fes/2.0 http://schemas.opengis.net/filter/2.0/filter.xsd">
+  <fes:PropertyIsNil>
+    <fes:ValueReference>app:nilTest</fes:ValueReference>
+  </fes:PropertyIsNil>
+</fes:Filter>
\ No newline at end of file