diff --git a/src/main/java/de/dhbwstuttgart/parser/SyntaxTreeGenerator/SyntaxTreeGenerator.java b/src/main/java/de/dhbwstuttgart/parser/SyntaxTreeGenerator/SyntaxTreeGenerator.java
index 0a7106f3..895c4ecd 100644
--- a/src/main/java/de/dhbwstuttgart/parser/SyntaxTreeGenerator/SyntaxTreeGenerator.java
+++ b/src/main/java/de/dhbwstuttgart/parser/SyntaxTreeGenerator/SyntaxTreeGenerator.java
@@ -445,6 +445,9 @@ public class SyntaxTreeGenerator {
       MethodblockContext methodblock = (MethodblockContext) body;
       block = stmtgen.convert(methodblock.block(), true);
     }
+    else {
+    	modifiers += Modifier.ABSTRACT;
+    }
     return new Method(modifiers, name, retType, paramlist, block, gtvDeclarations, bodydeclaration.getStart());
   }
 
diff --git a/src/test/java/TestComplete.java b/src/test/java/TestComplete.java
index d3ca98f4..43c8883d 100644
--- a/src/test/java/TestComplete.java
+++ b/src/test/java/TestComplete.java
@@ -740,7 +740,7 @@ public class TestComplete {
     @Test
     public void testLambdaRunnable() throws Exception {
         var classFiles = generateClassFiles(new ByteArrayClassLoader(), "LambdaRunnable.jav");
-        var clazz = classFiles.get("LamRunnable");
+        var clazz = classFiles.get("LambdaRunnable");
         var instance = clazz.getDeclaredConstructor().newInstance();
         //var m = clazz.getDeclaredMethod("m", Integer.class);
         //assertEquals(m.invoke(instance, 10), 60);