diff --git a/libs/gui/BLASTBufferQueue.cpp b/libs/gui/BLASTBufferQueue.cpp
index f05426f..dd50ca7 100644
--- a/libs/gui/BLASTBufferQueue.cpp
+++ b/libs/gui/BLASTBufferQueue.cpp
@@ -649,6 +649,9 @@
 
     // add to shadow queue
     mNumFrameAvailable++;
+    if (mWaitForTransactionCallback && mNumFrameAvailable == 2) {
+        acquireAndReleaseBuffer();
+    }
     ATRACE_INT(mQueuedBufferTrace.c_str(),
                mNumFrameAvailable + mNumAcquired - mPendingRelease.size());