diff --git a/IDEHelper/Compiler/BfDefBuilder.cpp b/IDEHelper/Compiler/BfDefBuilder.cpp
index 7c7d0e95..e0f9a2f1 100644
--- a/IDEHelper/Compiler/BfDefBuilder.cpp
+++ b/IDEHelper/Compiler/BfDefBuilder.cpp
@@ -586,6 +586,7 @@ BfMethodDef* BfDefBuilder::CreateMethodDef(BfMethodDeclaration* methodDeclaratio
 		if (methodDeclaration->mNameNode != NULL)
 			methodDef->mName = methodDeclaration->mNameNode->ToString();
 		methodDef->mMethodType = BfMethodType_Mixin;				
+		methodDef->mIsNoSplat = true;
 	}
 	else
 	{
diff --git a/IDEHelper/Compiler/BfModule.cpp b/IDEHelper/Compiler/BfModule.cpp
index 5cea7464..3d193cc7 100644
--- a/IDEHelper/Compiler/BfModule.cpp
+++ b/IDEHelper/Compiler/BfModule.cpp
@@ -16848,7 +16848,7 @@ void BfModule::ProcessMethod_SetupParams(BfMethodInstance* methodInstance, BfTyp
 			{
 				paramVar->mIsSplat = true;
 			}
-			else if (resolvedType->IsComposite() && resolvedType->IsSplattable())
+			else if ((resolvedType->IsComposite()) && (resolvedType->IsSplattable()))
 			{
 				if ((!mIsConstModule) && (methodInstance->AllowsSplatting()))
 				{
diff --git a/IDEHelper/Compiler/BfResolvedTypeUtils.cpp b/IDEHelper/Compiler/BfResolvedTypeUtils.cpp
index 71851fd1..b171624a 100644
--- a/IDEHelper/Compiler/BfResolvedTypeUtils.cpp
+++ b/IDEHelper/Compiler/BfResolvedTypeUtils.cpp
@@ -2479,6 +2479,8 @@ BfFieldDef* BfTupleType::AddField(const StringImpl& name)
 
 void BfTupleType::Finish()
 {
+	BF_ASSERT(!mTypeFailed);
+	
 	auto bfSystem = mTypeDef->mSystem;
 	mSource = new BfSource(bfSystem);
 	mTypeDef->mSource = mSource;