diff --git a/Objects/setobject.c b/Objects/setobject.c
index 6cd90b1..7eac1aa 100644
--- a/Objects/setobject.c
+++ b/Objects/setobject.c
@@ -1650,7 +1650,7 @@
             an_entry.key = key;
 
             rv = set_discard_entry(so, &an_entry);
-			if (rv == -1) {
+            if (rv == -1) {
                 Py_DECREF(key);
                 return NULL;
             }
@@ -1660,7 +1660,7 @@
                     return NULL;
                 }
             }
-			Py_DECREF(key);
+            Py_DECREF(key);
         }
         Py_RETURN_NONE;
     }