diff --git a/Modules/selectmodule.c b/Modules/selectmodule.c
index 179dd61..19d9d3b 100644
--- a/Modules/selectmodule.c
+++ b/Modules/selectmodule.c
@@ -1868,7 +1868,7 @@
                             "timeout must be positive or None");
             return NULL;
         }
-        ptimeoutspec = &timeoutspec;
+        ptimeoutspec = &timeout;
     }
     else {
         PyErr_Format(PyExc_TypeError,