diff --git a/rendering/exportthread.cpp b/rendering/exportthread.cpp
index 239f22b2b..bce22158c 100644
--- a/rendering/exportthread.cpp
+++ b/rendering/exportthread.cpp
@@ -60,6 +60,7 @@ ExportThread::ExportThread(const ExportParams &params,
   audio_stream(nullptr),
   acodec(nullptr),
   audio_frame(nullptr),
+  sws_frame(nullptr),
   swr_frame(nullptr),
   acodec_ctx(nullptr),
   swr_ctx(nullptr),