diff --git a/Driver/SerializationTest.cpp b/Driver/SerializationTest.cpp
index cafc502..50d06d4 100644
--- a/Driver/SerializationTest.cpp
+++ b/Driver/SerializationTest.cpp
@@ -16,6 +16,7 @@
 
 #include "clang/AST/ASTConsumer.h"
 #include "clang/AST/CFG.h"
+#include "clang/AST/Decl.h"
 #include "clang.h"
 #include "ASTConsumers.h"
 #include "clang/AST/TranslationUnit.h"