diff --git a/lib/Interpreter/IncrementalExecutor.h b/lib/Interpreter/IncrementalExecutor.h
index 0bfa633d..d31852b1 100644
--- a/lib/Interpreter/IncrementalExecutor.h
+++ b/lib/Interpreter/IncrementalExecutor.h
@@ -24,7 +24,6 @@ namespace llvm {
 
 namespace clang {
   class Decl;
-  class QualType;
 }
 
 namespace cling {