diff --git a/Objects/setobject.c b/Objects/setobject.c
index 0845840..61ba853 100644
--- a/Objects/setobject.c
+++ b/Objects/setobject.c
@@ -722,7 +722,7 @@
 		if (firstpass == 1)
 			firstpass = 0;
 		else
-			fprintf(fp, ",");
+			fprintf(fp, ", ");
 		if (PyObject_Print(item, fp, 0) != 0) {
 			Py_DECREF(it);
 			Py_DECREF(item);