1 files changed, 1 insertions, 1 deletions
diff --git a/Modules/grpmodule.c b/Modules/grpmodule.c
index d426f08..ab766b9 100644
--- a/Modules/grpmodule.c
+++ b/Modules/grpmodule.c
@@ -247,7 +247,7 @@ grp_getgrnam_impl(PyObject *module, PyObject *name)
             PyErr_NoMemory();
         }
         else {
-            PyErr_Format(PyExc_KeyError, "getgrnam(): name not found: %S", name);
+            PyErr_Format(PyExc_KeyError, "getgrnam(): name not found: %R", name);
         }
         goto out;
     }