diff --git a/libs/gui/BufferQueueProducer.cpp b/libs/gui/BufferQueueProducer.cpp
index 3f4c5da..520d0be 100644
--- a/libs/gui/BufferQueueProducer.cpp
+++ b/libs/gui/BufferQueueProducer.cpp
@@ -655,8 +655,9 @@
         }
 
         listener = mCore->mConsumerListener;
-        if (listener != nullptr) {
-            listener->onFrameDetached(mSlots[slot].mGraphicBuffer->getId());
+        auto gb = mSlots[slot].mGraphicBuffer;
+        if (listener != nullptr && gb != nullptr) {
+            listener->onFrameDetached(gb->getId());
         }
         mSlots[slot].mBufferState.detachProducer();
         mCore->mActiveBuffers.erase(slot);