diff --git a/modules/jooby-apitool/src/main/java/org/jooby/apitool/raml/Raml.java b/modules/jooby-apitool/src/main/java/org/jooby/apitool/raml/Raml.java
index 7fc64652c6..8ba5cc75bd 100644
--- a/modules/jooby-apitool/src/main/java/org/jooby/apitool/raml/Raml.java
+++ b/modules/jooby-apitool/src/main/java/org/jooby/apitool/raml/Raml.java
@@ -487,7 +487,9 @@ private RamlType define(final String type, final Model model) {
             }
           }));
       definition = object;
-      object.setExample(example);
+      if (example.values().stream().filter(Objects::nonNull).count() > 0) {
+        object.setExample(example);
+      }
     }
     return definition;
   }
diff --git a/modules/jooby-apitool/src/test/java/org/jooby/apitool/RamlTest.java b/modules/jooby-apitool/src/test/java/org/jooby/apitool/RamlTest.java
index 56af6457b4..893732a575 100644
--- a/modules/jooby-apitool/src/test/java/org/jooby/apitool/RamlTest.java
+++ b/modules/jooby-apitool/src/test/java/org/jooby/apitool/RamlTest.java
@@ -60,8 +60,6 @@ public void shouldWorkWithUUID() throws Exception {
         + "    type: object\n"
         + "    properties:\n"
         + "      id?: UUID\n"
-        + "    example:\n"
-        + "      id: null\n"
         + "/api:\n"
         + "  /entry:\n"
         + "    /{id}:\n"
@@ -103,7 +101,6 @@ public void shouldUseCustomType() throws Exception {
         + "      bar: string\n"
         + "  UUID:\n"
         + "    type: object\n"
-        + "    example: {}\n"
         + "/api:\n"
         + "  /entry:\n"
         + "    /{id}:\n"