diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index 3c75dd5..034730f 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -1435,7 +1435,8 @@
     break;
   case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
   case 1: Opts.setStackProtector(LangOptions::SSPOn);  break;
-  case 2: Opts.setStackProtector(LangOptions::SSPReq); break;
+  case 2: Opts.setStackProtector(LangOptions::SSPStrong); break;
+  case 3: Opts.setStackProtector(LangOptions::SSPReq); break;
   }
 
   // Parse -fsanitize= arguments.