diff --git a/libs/libc/src/string.cpp b/libs/libc/src/string.cpp
index 64e70dd0..f9a398c1 100644
--- a/libs/libc/src/string.cpp
+++ b/libs/libc/src/string.cpp
@@ -176,7 +176,7 @@ extern "C"
         case ENOEXEC: return "Exec format error";
         case EFAULT: return "Bad address";
         case 0: return "Success";
-        default: return (char*)(unsigned long int)err;
+        default: return "Unknown error";
         }
     }