diff --git a/src/main/java/de/dhbwstuttgart/syntaxtree/factory/ASTFactory.java b/src/main/java/de/dhbwstuttgart/syntaxtree/factory/ASTFactory.java
index 27ac8dbb..eb1538d0 100644
--- a/src/main/java/de/dhbwstuttgart/syntaxtree/factory/ASTFactory.java
+++ b/src/main/java/de/dhbwstuttgart/syntaxtree/factory/ASTFactory.java
@@ -95,7 +95,11 @@ public class ASTFactory {
 			var signature = methodSignatures.get(new Pair<>(constructor.getName(), org.objectweb.asm.Type.getConstructorDescriptor(constructor)));
 			createConstructor(constructor, signature, jreClass).map(c -> konstruktoren.add(c));
 		}
+
 		Set<java.lang.reflect.Method> allMethods = new HashSet<>(Arrays.asList(jreClass.getMethods()));
+		if (jreClass.isInterface())
+			allMethods.addAll(Arrays.asList(Object.class.getMethods())); // For some reason interfaces don't inherit from Object
+
 		Set<java.lang.reflect.Method> allDeclaredMethods = new HashSet<>(Arrays.asList(jreClass.getDeclaredMethods()));
 		Set<java.lang.reflect.Method> allInheritedMethods = new HashSet<>(allMethods);
 		allInheritedMethods.removeAll(allDeclaredMethods);