diff --git a/Objects/genobject.c b/Objects/genobject.c
index cd2fe3d..0fc14db 100644
--- a/Objects/genobject.c
+++ b/Objects/genobject.c
@@ -53,7 +53,7 @@
                         "generator already executing");
         return NULL;
     }
-    if (f==NULL || f->f_stacktop == NULL) {
+    if (f == NULL || f->f_stacktop == NULL) {
         /* Only set exception if called from send() */
         if (arg && !exc)
             PyErr_SetNone(PyExc_StopIteration);