diff --git a/src/main/java/gr/uom/java/xmi/UMLOperation.java b/src/main/java/gr/uom/java/xmi/UMLOperation.java
index aa1c37f0b..d1deae0a5 100644
--- a/src/main/java/gr/uom/java/xmi/UMLOperation.java
+++ b/src/main/java/gr/uom/java/xmi/UMLOperation.java
@@ -807,7 +807,7 @@ public boolean equals(Object o) {
 		return false;
 	}
 
-	public boolean equalsIgoringTypeParameters(UMLOperation operation) {
+	public boolean equalsIgnoringTypeParameters(UMLOperation operation) {
 		boolean thisEmptyBody = this.getBody() == null || this.hasEmptyBody();
 		boolean otherEmptyBody = operation.getBody() == null || operation.hasEmptyBody();
 		return this.className.equals(operation.className) &&
diff --git a/src/main/java/gr/uom/java/xmi/decomposition/UMLOperationBodyMapper.java b/src/main/java/gr/uom/java/xmi/decomposition/UMLOperationBodyMapper.java
index 9116d71e3..ecb11aa32 100644
--- a/src/main/java/gr/uom/java/xmi/decomposition/UMLOperationBodyMapper.java
+++ b/src/main/java/gr/uom/java/xmi/decomposition/UMLOperationBodyMapper.java
@@ -9734,6 +9734,16 @@ else if(identicalStringRepresentation2) {
 					return Integer.compare(thisNonMapped, otherNonMapped);
 				}
 				else {
+					if(getOperation1() != null && getOperation2() != null && operationBodyMapper.getOperation1() != null && operationBodyMapper.getOperation2() != null) {
+						boolean thisEqualSignature = this.getOperation1().equalsIgnoringTypeParameters(this.getOperation2());
+						boolean otherEqualSignature = operationBodyMapper.getOperation1().equalsIgnoringTypeParameters(operationBodyMapper.getOperation2());
+						if(thisEqualSignature && !otherEqualSignature) {
+							return -1;
+						}
+						else if(!thisEqualSignature && otherEqualSignature) {
+							return 1;
+						}
+					}
 					int thisEditDistance = this.editDistance();
 					int otherEditDistance = operationBodyMapper.editDistance();
 					if(thisEditDistance != otherEditDistance) {
diff --git a/src/main/java/gr/uom/java/xmi/diff/UMLClassBaseDiff.java b/src/main/java/gr/uom/java/xmi/diff/UMLClassBaseDiff.java
index 352906334..0e1b230cc 100644
--- a/src/main/java/gr/uom/java/xmi/diff/UMLClassBaseDiff.java
+++ b/src/main/java/gr/uom/java/xmi/diff/UMLClassBaseDiff.java
@@ -3397,7 +3397,7 @@ else if(removedOperation.equalsIgnoringNameCase(addedOperation) && !differentPar
 					removedOperationsToBeRemoved.add(removedOperation);
 					addedOperationsToBeRemoved.add(addedOperation);
 				}
-				else if(removedOperation.equalsIgoringTypeParameters(addedOperation) && !differentParameterNames(removedOperation, addedOperation) &&
+				else if(removedOperation.equalsIgnoringTypeParameters(addedOperation) && !differentParameterNames(removedOperation, addedOperation) &&
 						removedOperations.size() == addedOperations.size()) {
 					UMLOperationBodyMapper operationBodyMapper = new UMLOperationBodyMapper(removedOperation, addedOperation, this);
 					this.addOperationBodyMapper(operationBodyMapper);