diff --git a/src/libs/gif/AnimatedGIF.h b/src/libs/gif/AnimatedGIF.h
index 1795aea633..a0d51390b4 100644
--- a/src/libs/gif/AnimatedGIF.h
+++ b/src/libs/gif/AnimatedGIF.h
@@ -106,6 +106,7 @@ enum {
    GIF_SUCCESS = 0,
    GIF_DECODE_ERROR,
    GIF_TOO_LARGE,
+   GIF_TOO_WIDE = GIF_TOO_LARGE, // backward-compatible alias; prefer GIF_TOO_LARGE
    GIF_INVALID_PARAMETER,
    GIF_UNSUPPORTED_FEATURE,
    GIF_FILE_NOT_OPEN,