diff --git a/llvm/include/llvm/ADT/StringMapEntry.h b/llvm/include/llvm/ADT/StringMapEntry.h
index 98b51cc1aebd5..d93af5aedc39d 100644
--- a/llvm/include/llvm/ADT/StringMapEntry.h
+++ b/llvm/include/llvm/ADT/StringMapEntry.h
@@ -116,9 +116,7 @@ class StringMapEntry final : public StringMapEntryStorage<ValueTy> {
     return reinterpret_cast<const char *>(this + 1);
   }
 
-  StringRef first() const {
-    return StringRef(getKeyData(), this->getKeyLength());
-  }
+  StringRef first() const { return getKey(); }
 
   /// Create a StringMapEntry for the specified key construct the value using
   /// \p InitiVals.