diff --git a/src/citra_qt/camera/qt_multimedia_camera.cpp b/src/citra_qt/camera/qt_multimedia_camera.cpp
index e18508c24a..1c9d07f76e 100644
--- a/src/citra_qt/camera/qt_multimedia_camera.cpp
+++ b/src/citra_qt/camera/qt_multimedia_camera.cpp
@@ -174,6 +174,12 @@ void QtMultimediaCameraHandler::CreateCamera(const std::string& camera_name) {
     settings.setMaximumFrameRate(30);
     camera->setViewfinder(&camera_surface);
     camera->load();
+    if (camera->supportedViewfinderPixelFormats().isEmpty()) {
+        // The gstreamer plugin (used on linux systems) returns an empty list on querying supported
+        // viewfinder pixel formats, and will not work without expliciting setting it to some value,
+        // so we are defaulting to RGB565 here which should be fairly widely supported.
+        settings.setPixelFormat(QVideoFrame::PixelFormat::Format_RGB565);
+    }
 }
 
 void QtMultimediaCameraHandler::StopCamera() {