diff --git a/cpp/src/Ice/OutgoingAsync.cpp b/cpp/src/Ice/OutgoingAsync.cpp
index a10ae20f6cc..9848331b0bf 100644
--- a/cpp/src/Ice/OutgoingAsync.cpp
+++ b/cpp/src/Ice/OutgoingAsync.cpp
@@ -221,10 +221,7 @@ OutgoingAsyncBase::cancel()
 }
 
 void
-OutgoingAsyncBase::attachRemoteObserver(
-    const ConnectionInfoPtr& c,
-    const EndpointPtr& endpt,
-    std::int32_t requestId)
+OutgoingAsyncBase::attachRemoteObserver(const ConnectionInfoPtr& c, const EndpointPtr& endpt, std::int32_t requestId)
 {
     const std::int32_t size = static_cast<std::int32_t>(_os.b.size() - headerSize - 4);
     _childObserver.attach(getObserver().getRemoteObserver(c, endpt, requestId, size));