diff --git a/IDEHelper/Compiler/BfDefBuilder.cpp b/IDEHelper/Compiler/BfDefBuilder.cpp
index efa70672..aa19e6e3 100644
--- a/IDEHelper/Compiler/BfDefBuilder.cpp
+++ b/IDEHelper/Compiler/BfDefBuilder.cpp
@@ -443,17 +443,7 @@ BfMethodDef* BfDefBuilder::CreateMethodDef(BfMethodDeclaration* methodDeclaratio
 		{
 			methodDef->mIsConcrete = true;
 			methodDef->mIsVirtual = false;
-		}
-
-		if (mCurTypeDef->mTypeCode == BfTypeCode_Interface)
-		{
-			//
-		}
-		else
-		{
-			if (methodDef->mIsConcrete)
-				Fail("Only interfaces methods can be declared as 'concrete'", methodDeclaration->mVirtualSpecifier);
-		}
+		}		
 
 		if (methodDef->mIsAbstract)
 		{
diff --git a/IDEHelper/Compiler/BfModule.cpp b/IDEHelper/Compiler/BfModule.cpp
index eb6652d5..3d0ef3df 100644
--- a/IDEHelper/Compiler/BfModule.cpp
+++ b/IDEHelper/Compiler/BfModule.cpp
@@ -22780,6 +22780,11 @@ void BfModule::DoMethodDeclaration(BfMethodDeclaration* methodDeclaration, bool
 		}
 	}
 
+	if ((methodDef->mIsConcrete) && (!methodInstance->mIsForeignMethodDef) && (!mCurTypeInstance->IsInterface()))
+	{
+		Fail("Only interfaces methods can be declared as 'concrete'", methodDeclaration->mVirtualSpecifier);
+	}
+
 	if ((methodDef->mIsVirtual) && (methodDef->mIsStatic) && (!methodInstance->mIsInnerOverride))
 	{
 		if ((virtualToken != NULL) && (virtualToken->mToken == BfToken_Override) && (methodDef->mDeclaringType->mTypeCode == BfTypeCode_Extension))
diff --git a/IDEHelper/Compiler/BfModuleTypeUtils.cpp b/IDEHelper/Compiler/BfModuleTypeUtils.cpp
index 9f2df9a8..641054e3 100644
--- a/IDEHelper/Compiler/BfModuleTypeUtils.cpp
+++ b/IDEHelper/Compiler/BfModuleTypeUtils.cpp
@@ -8336,7 +8336,7 @@ BfTypeDef* BfModule::GetActiveTypeDef(BfTypeInstance* typeInstanceOverride, bool
 		useTypeDef = typeInstance->mTypeDef;
 	if ((mCurMethodState != NULL) && (mCurMethodState->mMixinState != NULL) && (useMixinDecl))
 		useTypeDef = mCurMethodState->mMixinState->mMixinMethodInstance->mMethodDef->mDeclaringType;
-	else if ((mCurMethodInstance != NULL) && (mCurMethodInstance->mMethodDef->mDeclaringType != NULL))
+	else if ((mCurMethodInstance != NULL) && (!mCurMethodInstance->mIsForeignMethodDef) && (mCurMethodInstance->mMethodDef->mDeclaringType != NULL))
 		useTypeDef = mCurMethodInstance->mMethodDef->mDeclaringType;
 	else if (mContext->mCurTypeState != NULL)
 	{