diff --git a/glamor/glamor_pixmap.c b/glamor/glamor_pixmap.c
index c275af7f8..a811f6015 100644
--- a/glamor/glamor_pixmap.c
+++ b/glamor/glamor_pixmap.c
@@ -978,7 +978,7 @@ glamor_upload_sub_pixmap_to_texture(PixmapPtr pixmap, int x, int y, int w,
                                                &no_alpha,
                                                &revert, &swap_rb, 1)) {
         glamor_fallback("Unknown pixmap depth %d.\n", pixmap->drawable.depth);
-        return TRUE;
+        return FALSE;
     }
     if (glamor_pixmap_upload_prepare(pixmap, format, no_alpha, revert, swap_rb))
         return FALSE;