diff --git a/src/WSRequestHandler_Sources.cpp b/src/WSRequestHandler_Sources.cpp
index 0726a87d..9a05faa3 100644
--- a/src/WSRequestHandler_Sources.cpp
+++ b/src/WSRequestHandler_Sources.cpp
@@ -1430,7 +1430,7 @@ HandlerResponse WSRequestHandler::HandleTakeSourceScreenshot(WSRequestHandler* r
 		if (gs_stagesurface_map(stagesurface, &videoData, &videoLinesize)) {
 			int linesize = sourceImage.bytesPerLine();
 			for (int y = 0; y < imgHeight; y++) {
-				memcpy(sourceImage.scanLine(y), videoData + (y * linesize), linesize);
+			 	memcpy(sourceImage.scanLine(y), videoData + (y * videoLinesize), linesize);
 			}
 			gs_stagesurface_unmap(stagesurface);
 			renderSuccess = true;