diff --git a/src/main/java/de/maishai/typedast/typedclass/TypedFieldVarAccess.java b/src/main/java/de/maishai/typedast/typedclass/TypedFieldVarAccess.java
index 9b6c7c5..681de57 100644
--- a/src/main/java/de/maishai/typedast/typedclass/TypedFieldVarAccess.java
+++ b/src/main/java/de/maishai/typedast/typedclass/TypedFieldVarAccess.java
@@ -116,7 +116,7 @@ public class TypedFieldVarAccess implements TypedExpression {
         TypedClass currentClass = typedProgram.getCurrentClass();
 
         if (currentClass.isThereField(name)) {
-            type = currentClass.getFieldType(name);
+            throw new RuntimeException("Field Variable " + name + " should be used with `this´");
         } else if (currentClass.isMethodOfCurrentClass(name)) {
             type = currentClass.getMethodType(name);
         } else if (recursiveOwnerChain instanceof TypedFieldVarAccess typedFieldVarAccess) {