diff --git a/clang/lib/CodeGen/ItaniumCXXABI.cpp b/clang/lib/CodeGen/ItaniumCXXABI.cpp
--- a/clang/lib/CodeGen/ItaniumCXXABI.cpp
+++ b/clang/lib/CodeGen/ItaniumCXXABI.cpp
@@ -450,8 +450,7 @@
 class WebAssemblyCXXABI final : public ItaniumCXXABI {
 public:
   explicit WebAssemblyCXXABI(CodeGen::CodeGenModule &CGM)
-      : ItaniumCXXABI(CGM, /*UseARMMethodPtrABI=*/true,
-                      /*UseARMGuardVarABI=*/true) {}
+      : ItaniumCXXABI(CGM, /*UseARMMethodPtrABI=*/true {}
   void emitBeginCatch(CodeGenFunction &CGF, const CXXCatchStmt *C) override;
 
 private: