diff --git a/unix/unix.h b/unix/unix.h
index 7ab2ca24..68f749ac 100644
--- a/unix/unix.h
+++ b/unix/unix.h
@@ -183,7 +183,7 @@ void uxsel_init(void);
 typedef int (*uxsel_callback_fn)(int fd, int event);
 void uxsel_set(int fd, int rwx, uxsel_callback_fn callback);
 void uxsel_del(int fd);
-int select_result(int fd, int event);
+void select_result(int fd, int event);
 int first_fd(int *state, int *rwx);
 int next_fd(int *state, int *rwx);
 /* The following are expected to be provided _to_ uxsel.c by the frontend */
diff --git a/unix/uxsel.c b/unix/uxsel.c
index ef25cdb5..52f346a4 100644
--- a/unix/uxsel.c
+++ b/unix/uxsel.c
@@ -111,7 +111,7 @@ int first_fd(int *state, int *rwx)
     return next_fd(state, rwx);
 }
 
-int select_result(int fd, int event)
+void select_result(int fd, int event)
 {
     struct fd *fdstruct = find234(fds, &fd, uxsel_fd_findcmp);
     /*
@@ -120,7 +120,5 @@ int select_result(int fd, int event)
      * fd I've stopped being interested in. Sigh.
      */
     if (fdstruct)
-        return fdstruct->callback(fd, event);
-    else
-        return 1;
+        fdstruct->callback(fd, event);
 }