diff --git a/Source/WebCore/platform/graphics/gstreamer/mse/MediaSourcePrivateGStreamer.h b/Source/WebCore/platform/graphics/gstreamer/mse/MediaSourcePrivateGStreamer.h
index be2d7df04665f..11addcb96ab9c 100644
--- a/Source/WebCore/platform/graphics/gstreamer/mse/MediaSourcePrivateGStreamer.h
+++ b/Source/WebCore/platform/graphics/gstreamer/mse/MediaSourcePrivateGStreamer.h
@@ -93,13 +93,14 @@ class MediaSourcePrivateGStreamer final : public MediaSourcePrivate
 #if !RELEASE_LOG_DISABLED
     Ref<const Logger> m_logger;
     const void* m_logIdentifier;
+#endif
+
     uint64_t m_nextSourceBufferID { 0 };
 
     // Stores known track IDs, so we can work around ID collisions between multiple source buffers.
     // The registry is placed here to enforce ID uniqueness specifically by player, not by process,
     // since its not an issue if multiple players use the same ID, and we want to preserve IDs as much as possible.
     HashSet<TrackID, WTF::IntHash<TrackID>, WTF::UnsignedWithZeroKeyHashTraits<TrackID>> m_trackIdRegistry;
-#endif
 };
 
 } // namespace WebCore