diff --git a/tools/image_gen/main.c b/tools/image_gen/main.c
index e713542df..52d6d4102 100644
--- a/tools/image_gen/main.c
+++ b/tools/image_gen/main.c
@@ -40,7 +40,7 @@ ret_t image_format_set(image_format_t* image_format, const wchar_t* format) {
       image_format->mono = TRUE;
     }
 
-    if (wcsstr(format, L"bgra")) {
+    if (wcsstr(format, L"bgr")) {
       image_format->require_bgra = TRUE;
     }