diff --git a/source/doap/client/request.d b/source/doap/client/request.d
index 4e7fc87..b7dc6fe 100644
--- a/source/doap/client/request.d
+++ b/source/doap/client/request.d
@@ -306,7 +306,7 @@ public class CoapRequestFuture
         this.state = RequestState.COMPLETED;
 
         // Wake up the sleepers
-        this.condition.notify();
+        this.condition.notifyAll();
     }
 
     /**