diff --git a/src/main/java/gr/uom/java/xmi/decomposition/OperationInvocation.java b/src/main/java/gr/uom/java/xmi/decomposition/OperationInvocation.java
index d30634010..2dbf8b6ac 100644
--- a/src/main/java/gr/uom/java/xmi/decomposition/OperationInvocation.java
+++ b/src/main/java/gr/uom/java/xmi/decomposition/OperationInvocation.java
@@ -589,6 +589,12 @@ private static boolean collectionMatch(UMLType parameterType, UMLType type) {
 					if(typeArgument.toString().length() == 1 && Character.isUpperCase(typeArgument.toString().charAt(0))) {
 						return true;
 					}
+					if(type.getTypeArguments().size() == 1) {
+						UMLType typeArgument2 = type.getTypeArguments().get(0);
+						if(typeArgument2.getClassType().equals(typeArgument.getClassType())) {
+							return true;
+						}
+					}
 				}
 			}
 		}