diff --git a/Objects/genobject.c b/Objects/genobject.c
index b065fc79763..f25b8a5f0ec 100644
--- a/Objects/genobject.c
+++ b/Objects/genobject.c
@@ -542,7 +542,7 @@ static PyGetSetDef gen_getsetlist[] = {
 
 static PyMemberDef gen_memberlist[] = {
     {"gi_frame",        T_OBJECT, offsetof(PyGenObject, gi_frame),      READONLY},
-    {"gi_running",      T_INT,    offsetof(PyGenObject, gi_running),    READONLY},
+    {"gi_running",      T_BOOL,    offsetof(PyGenObject, gi_running),    READONLY},
     {"gi_code",     T_OBJECT, offsetof(PyGenObject, gi_code),  READONLY},
     {NULL}      /* Sentinel */
 };