diff --git a/pkg/products.go b/pkg/products.go
index 9b990a1..caeb174 100644
--- a/pkg/products.go
+++ b/pkg/products.go
@@ -137,7 +137,9 @@ func HandleUpdateProduct(w http.ResponseWriter, r *http.Request, params httprout
 	}
 	slug := params[0].Value
 	if !form.Validate() {
-		w.WriteHeader(http.StatusUnprocessableEntity)
+		if !IsHTMxRequest(r) {
+			w.WriteHeader(http.StatusUnprocessableEntity)
+		}
 		mustRenderEditProductForm(w, r, slug, form)
 		return
 	}