diff --git a/src/error.c b/src/error.c
index 01e261708..0725dd7ad 100644
--- a/src/error.c
+++ b/src/error.c
@@ -104,7 +104,7 @@ GLFWAPI const char* glfwErrorString(int error)
         case GLFW_PLATFORM_ERROR:
             return "A platform-specific error occurred";
         default:
-            return "ERROR: UNKNOWN ERROR TOKEN";
+            return "ERROR: UNKNOWN ERROR TOKEN PASSED TO glfwErrorString";
     }
 }