diff --git a/clang/utils/TableGen/ClangAttrEmitter.cpp b/clang/utils/TableGen/ClangAttrEmitter.cpp
index 0426ecb34c87..6b3df825808f 100644
--- a/clang/utils/TableGen/ClangAttrEmitter.cpp
+++ b/clang/utils/TableGen/ClangAttrEmitter.cpp
@@ -3274,15 +3274,11 @@ static std::string GenerateCustomAppertainsTo(const Record &Subject,
     return "";
   }
 
-  const StringRef CheckCodeValue = Subject.getValueAsString("CheckCode");
-
   OS << "static bool " << FnName << "(const Decl *D) {\n";
-  if (CheckCodeValue != "false") {
-    OS << "  if (const auto *S = dyn_cast<";
-    OS << GetSubjectWithSuffix(Base);
-    OS << ">(D))\n";
-    OS << "    return " << Subject.getValueAsString("CheckCode") << ";\n";
-  }
+  OS << "  if (const auto *S = dyn_cast<";
+  OS << GetSubjectWithSuffix(Base);
+  OS << ">(D))\n";
+  OS << "    return " << Subject.getValueAsString("CheckCode") << ";\n";
   OS << "  return false;\n";
   OS << "}\n\n";