diff --git a/libs/gui/IGraphicBufferProducer.cpp b/libs/gui/IGraphicBufferProducer.cpp
index b73e69e..e713c04 100644
--- a/libs/gui/IGraphicBufferProducer.cpp
+++ b/libs/gui/IGraphicBufferProducer.cpp
@@ -219,6 +219,7 @@
             QueueBufferOutput* const output =
                     reinterpret_cast<QueueBufferOutput *>(
                             reply->writeInplace(sizeof(QueueBufferOutput)));
+            memset(output, 0, sizeof(QueueBufferOutput));
             status_t result = queueBuffer(buf, input, output);
             reply->writeInt32(result);
             return NO_ERROR;