diff --git a/libs/gui/GLConsumer.cpp b/libs/gui/GLConsumer.cpp
index 0a2afbf..cf3f12a 100644
--- a/libs/gui/GLConsumer.cpp
+++ b/libs/gui/GLConsumer.cpp
@@ -96,6 +96,7 @@
     mCurrentScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE),
     mCurrentFence(Fence::NO_FENCE),
     mCurrentTimestamp(0),
+    mCurrentFrameNumber(0),
     mDefaultWidth(1),
     mDefaultHeight(1),
     mFilteringEnabled(true),
@@ -380,6 +381,7 @@
     mCurrentScalingMode = item.mScalingMode;
     mCurrentTimestamp = item.mTimestamp;
     mCurrentFence = item.mFence;
+    mCurrentFrameNumber = item.mFrameNumber;
 
     computeCurrentTransformMatrixLocked();
 
@@ -819,6 +821,12 @@
     return mCurrentTimestamp;
 }
 
+nsecs_t GLConsumer::getFrameNumber() {
+    ST_LOGV("getFrameNumber");
+    Mutex::Autolock lock(mMutex);
+    return mCurrentFrameNumber;
+}
+
 EGLImageKHR GLConsumer::createImage(EGLDisplay dpy,
         const sp<GraphicBuffer>& graphicBuffer) {
     EGLClientBuffer cbuf = (EGLClientBuffer)graphicBuffer->getNativeBuffer();