diff --git a/tiny_gltf.h b/tiny_gltf.h
index b2c76b9..d6b82a9 100644
--- a/tiny_gltf.h
+++ b/tiny_gltf.h
@@ -3000,7 +3000,9 @@ json_const_iterator ObjectEnd(const json &o) {
 #endif
 }
 
-const char *GetKey(json_const_iterator &it) {
+// Making this a const char* results in a pointer to a temporary when
+// TINYGLTF_USE_RAPIDJSON is off.
+std::string GetKey(json_const_iterator &it) {
 #ifdef TINYGLTF_USE_RAPIDJSON
   return it->name.GetString();
 #else