@@ -480,7 +480,7 @@ sselect_adduserptr(_sselect *ssel, int fd, void *userptr)

                 if((newptr=realloc(ssel->userptr,sizeof(void *)*newsize))==NULL)

                         return(-1);

                 ssel->userptr=newptr;

-                memset(ssel->userptr+ssel->sizeuserptr,sizeof(void *)*(newsize-ssel->sizeuserptr),0);

+                memset(ssel->userptr+ssel->sizeuserptr,0,sizeof(void *)*(newsize-ssel->sizeuserptr));

                 ssel->sizeuserptr=newsize;

         }

         ssel->userptr[fd]=userptr;