--- a/RELEASE_NOTES	Mon Feb 22 17:09:42 2016 +0100
+++ b/RELEASE_NOTES	Tue Feb 23 00:28:42 2016 +0100
@@ -106,6 +106,7 @@
 - Bug 2292 - Uninitialized variables since commit 7c60a9f8f271
 - Bug 2293 - Red Queue Estimator spins when trying to compute queue average size under long idle times.
 - Bug 2302 - Fixing RTT calculation inside TCP Socket
+- Bug 2303 - WifiMacQueue::GetSize should cleanup queue beforehand
 
 Known issues
 ------------

--- a/src/wifi/model/wifi-mac-queue.cc	Mon Feb 22 17:09:42 2016 +0100
+++ b/src/wifi/model/wifi-mac-queue.cc	Tue Feb 23 00:28:42 2016 +0100
@@ -221,6 +221,7 @@
 uint32_t
 WifiMacQueue::GetSize (void)
 {
+  Cleanup ();
   return m_size;
 }