diff --git a/llvm/lib/Target/CppBackend/CPPBackend.cpp b/llvm/lib/Target/CppBackend/CPPBackend.cpp
index f468861..50bfef5 100644
--- a/llvm/lib/Target/CppBackend/CPPBackend.cpp
+++ b/llvm/lib/Target/CppBackend/CPPBackend.cpp
@@ -499,6 +499,7 @@
       HANDLE_ATTR(OptimizeForSize);
       HANDLE_ATTR(StackProtect);
       HANDLE_ATTR(StackProtectReq);
+      HANDLE_ATTR(StackProtectStrong);
       HANDLE_ATTR(NoCapture);
       HANDLE_ATTR(NoRedZone);
       HANDLE_ATTR(NoImplicitFloat);