diff --git a/src/Generator/Passes/MultipleInheritancePass.cs b/src/Generator/Passes/MultipleInheritancePass.cs
index c2ece93d77..240ec819f3 100644
--- a/src/Generator/Passes/MultipleInheritancePass.cs
+++ b/src/Generator/Passes/MultipleInheritancePass.cs
@@ -196,7 +196,8 @@ private static void ImplementInterfaceMethods(Class @class, Class @interface)
             foreach (var method in @interface.Methods)
             {
                 if (@class.Methods.Any(m => m.OriginalName == method.OriginalName &&
-                                            m.Parameters.SequenceEqual(method.Parameters, parameterTypeComparer)))
+                        m.Parameters.SequenceEqual(method.Parameters.Where(p => !p.Ignore),
+                            parameterTypeComparer)))
                     continue;
                 var impl = new Method(method)
                     {
diff --git a/tests/CSharpTemp/CSharpTemp.Tests.cs b/tests/CSharpTemp/CSharpTemp.Tests.cs
index da8a0ce925..1df0d8ca6e 100644
--- a/tests/CSharpTemp/CSharpTemp.Tests.cs
+++ b/tests/CSharpTemp/CSharpTemp.Tests.cs
@@ -22,6 +22,14 @@ public void TestUncompilableCode()
         new InheritanceBuffer().Dispose();
         new HasProtectedVirtual().Dispose();
         new Proprietor(5).Dispose();
+        using (var testOverrideFromSecondaryBase = new TestOverrideFromSecondaryBase())
+        {
+            testOverrideFromSecondaryBase.function();
+            var ok = false;
+            testOverrideFromSecondaryBase.function(ref ok);
+            var property = testOverrideFromSecondaryBase.property;
+            testOverrideFromSecondaryBase.VirtualMember();
+        }
         using (var foo = new Foo())
         {
             var isNoParams = foo.IsNoParams;
diff --git a/tests/CSharpTemp/CSharpTemp.cpp b/tests/CSharpTemp/CSharpTemp.cpp
index 855ece0b95..e7521c08b2 100644
--- a/tests/CSharpTemp/CSharpTemp.cpp
+++ b/tests/CSharpTemp/CSharpTemp.cpp
@@ -585,7 +585,7 @@ void SecondaryBase::setProperty(int value)
 {
 }
 
-void SecondaryBase::function()
+void SecondaryBase::function(bool* ok)
 {
 }
 
@@ -602,6 +602,10 @@ void SecondaryBase::setProtectedProperty(int value)
 {
 }
 
+TestOverrideFromSecondaryBase::TestOverrideFromSecondaryBase()
+{
+}
+
 void TestOverrideFromSecondaryBase::VirtualMember()
 {
 }
diff --git a/tests/CSharpTemp/CSharpTemp.h b/tests/CSharpTemp/CSharpTemp.h
index 263fb105b9..f07cf11d94 100644
--- a/tests/CSharpTemp/CSharpTemp.h
+++ b/tests/CSharpTemp/CSharpTemp.h
@@ -573,7 +573,7 @@ class DLL_API SecondaryBase
     virtual void VirtualMember();
     int property();
     void setProperty(int value);
-    void function();
+    void function(bool* ok = 0);
 protected:
     void protectedFunction();
     int protectedProperty();
@@ -583,6 +583,7 @@ class DLL_API SecondaryBase
 class DLL_API TestOverrideFromSecondaryBase : public Foo, public SecondaryBase
 {
 public:
+    TestOverrideFromSecondaryBase();
     void VirtualMember();
     void setProperty(int value);
 };