1 files changed, 2 insertions, 0 deletions
diff --git a/ev++.h b/ev++.h
index 4cec699..fd2563f 100644
--- a/ev++.h
+++ b/ev++.h
@@ -725,9 +725,11 @@ namespace ev {
   EV_END_WATCHER (stat, stat)
   #endif
 
+#if EV_IDLE_ENABLE
   EV_BEGIN_WATCHER (idle, idle)
     void set () throw () { }
   EV_END_WATCHER (idle, idle)
+#endif
 
   EV_BEGIN_WATCHER (prepare, prepare)
     void set () throw () { }