diff --git a/es-app/src/MediaViewer.cpp b/es-app/src/MediaViewer.cpp
index 62846aff3..57a6058e2 100644
--- a/es-app/src/MediaViewer.cpp
+++ b/es-app/src/MediaViewer.cpp
@@ -170,7 +170,7 @@ void MediaViewer::findMedia()
 
     if (mHasVideo && (mediaFile = mGame->getScreenshotPath()) != "") {
         mImageFiles.push_back(mediaFile);
-        mScreenShotIndex = mImageFiles.size() - 1;
+        mScreenShotIndex = static_cast<int>(mImageFiles.size() - 1);
     }
 
     if ((mediaFile = mGame->get3DBoxPath()) != "")