diff --git a/IDEHelper/Compiler/BfResolvedTypeUtils.cpp b/IDEHelper/Compiler/BfResolvedTypeUtils.cpp
index dcee546b..26ba94bc 100644
--- a/IDEHelper/Compiler/BfResolvedTypeUtils.cpp
+++ b/IDEHelper/Compiler/BfResolvedTypeUtils.cpp
@@ -2631,7 +2631,7 @@ void BfTupleType::Finish()
 BfBoxedType::~BfBoxedType()
 {
 	if ((mTypeDef != NULL) && (mTypeDef->mEmitParent != NULL))
-		mTypeDef = mTypeDef->mEmitParent;
+		mTypeDef = NULL;
 }
 
 BfType* BfBoxedType::GetModifiedElementType()