diff --git a/Linphone/core/payload-type/DownloadablePayloadTypeCore.cpp b/Linphone/core/payload-type/DownloadablePayloadTypeCore.cpp
index 7b8b70a3..6ce8a544 100644
--- a/Linphone/core/payload-type/DownloadablePayloadTypeCore.cpp
+++ b/Linphone/core/payload-type/DownloadablePayloadTypeCore.cpp
@@ -85,6 +85,7 @@ void DownloadablePayloadTypeCore::setSelf(QSharedPointer<DownloadablePayloadType
 }
 
 void DownloadablePayloadTypeCore::downloadAndExtract(bool isUpdate) {
+	mustBeInMainThread(log().arg(Q_FUNC_INFO));
 	lInfo() << log().arg("Downloading `%1` codec...").arg(mMimeType);
 	auto codecsFolder = Paths::getCodecsDirPath();
 	QString versionFilePath = codecsFolder + mMimeType + ".txt";
diff --git a/Linphone/tool/Utils.cpp b/Linphone/tool/Utils.cpp
index 2ebe9beb..afea9eb0 100644
--- a/Linphone/tool/Utils.cpp
+++ b/Linphone/tool/Utils.cpp
@@ -1396,7 +1396,7 @@ QList<QSharedPointer<DownloadablePayloadTypeCore>> Utils::getDownloadableVideoPa
 
 void Utils::checkDownloadedCodecsUpdates() {
 	for (auto codec : getDownloadableVideoPayloadTypes()) {
-		if (codec->shouldDownloadUpdate()) codec->downloadAndExtract(true);
+		if (codec->shouldDownloadUpdate()) App::postCoreAsync([codec]() { codec->downloadAndExtract(true); });
 	}
 }