diff --git a/llvm/lib/Analysis/LazyCallGraph.cpp b/llvm/lib/Analysis/LazyCallGraph.cpp
index 88ea53cfec1ae7..20a905e04a9d09 100644
--- a/llvm/lib/Analysis/LazyCallGraph.cpp
+++ b/llvm/lib/Analysis/LazyCallGraph.cpp
@@ -34,6 +34,10 @@
 #include <tuple>
 #include <utility>
 
+#ifdef EXPENSIVE_CHECKS
+#include "llvm/ADT/ScopeExit.h"
+#endif
+
 using namespace llvm;
 
 #define DEBUG_TYPE "lcg"