diff --git a/clang/lib/Checker/GRExprEngineExperimentalChecks.cpp b/clang/lib/Checker/GRExprEngineExperimentalChecks.cpp
index 89b4e4b..6066a1c 100644
--- a/clang/lib/Checker/GRExprEngineExperimentalChecks.cpp
+++ b/clang/lib/Checker/GRExprEngineExperimentalChecks.cpp
@@ -36,5 +36,6 @@
   RegisterPointerSubChecker(Eng);
   RegisterPointerArithChecker(Eng);
   RegisterCastToStructChecker(Eng);
+  RegisterCastSizeChecker(Eng);
   RegisterArrayBoundChecker(Eng);
 }