diff --git a/src/components/camera/Camera.cpp b/src/components/camera/Camera.cpp
index 60fb17465..f5fbc8a02 100644
--- a/src/components/camera/Camera.cpp
+++ b/src/components/camera/Camera.cpp
@@ -156,6 +156,11 @@ void CameraRenderer::updateWindowId () {
 
 bool CameraRenderer::notifyReceivedVideoSize () const {
   shared_ptr<const linphone::VideoDefinition> videoDefinition = mCall->getCurrentParams()->getReceivedVideoDefinition();
+
+  // Can be null if the receiver quickly disconnects. Rare but possible.
+  if (!videoDefinition)
+    return false;
+
   unsigned int width = videoDefinition->getWidth();
   unsigned int height = videoDefinition->getHeight();