diff --git a/source/doap/client/request.d b/source/doap/client/request.d
index fa0f303..614130c 100644
--- a/source/doap/client/request.d
+++ b/source/doap/client/request.d
@@ -299,7 +299,7 @@ public class CoapRequestFuture
         // TODO: Set state as cancelled
 
         // Wake up the sleepers
-        this.condition.notify();
+        this.condition.notifyAll();
     }
 
     /**