diff --git a/src/de/dhbwstuttgart/typeinference/typeAlgo/TYPEStmt.java b/src/de/dhbwstuttgart/typeinference/typeAlgo/TYPEStmt.java
index fcd8ecfa..6b9f4919 100644
--- a/src/de/dhbwstuttgart/typeinference/typeAlgo/TYPEStmt.java
+++ b/src/de/dhbwstuttgart/typeinference/typeAlgo/TYPEStmt.java
@@ -201,7 +201,7 @@ public class TYPEStmt implements StatementVisitor{
                 unaryExpr.operation == UnaryExpr.Operation.PREINCREMENT){
             //@see: https://docs.oracle.com/javase/specs/jls/se7/html/jls-15.html#jls-15.14.2
             //Expression muss zu Numeric Convertierbar sein. also von Numeric erben
-            constraintsSet.addUndConstraint(new Pair(unaryExpr.expr.getType(), number, PairOperator.SMALLERDOT));
+            constraintsSet.addUndConstraint(new Pair(unaryExpr.expr.getType(), number, PairOperator.SMALLERNEQDOT));
             //The type of the postfix increment expression is the type of the variable
             constraintsSet.addUndConstraint(new Pair(unaryExpr.expr.getType(), unaryExpr.getType(), PairOperator.EQUALSDOT));
         }else{
diff --git a/test/bytecode/javFiles/Fac.jav b/test/bytecode/javFiles/Fac.jav
index baee231b..eb2e6d61 100644
--- a/test/bytecode/javFiles/Fac.jav
+++ b/test/bytecode/javFiles/Fac.jav
@@ -4,7 +4,7 @@ import java.lang.Double;
 
 public class Fac  {
 	
-	java.lang.Long getFac(n){
+	getFac(n){
 		var res = 1;
 		var i = 1;
 		while(i<=n) {