diff --git a/app/dashboard/breathing/page.tsx b/app/dashboard/breathing/page.tsx
index dbba18b..08c753a 100644
--- a/app/dashboard/breathing/page.tsx
+++ b/app/dashboard/breathing/page.tsx
@@ -129,7 +129,8 @@ export default function BreathingPage() {
         duration: numOrUndefined(form.duration),
         description: form.description,
         image_id: numOrUndefined(form.image_id),
-        breathing_color_id: breathingColorId ?? undefined,
+        // Send null (not undefined) so choosing "بدون رنگ" actually clears it.
+        breathing_color_id: breathingColorId,
       };
       if (editing) {
         // Update is JSON on /breathing-templates/:id