diff --git a/locales/de-DE.yml b/locales/de-DE.yml
index d04480e43..90078ec7d 100644
--- a/locales/de-DE.yml
+++ b/locales/de-DE.yml
@@ -756,6 +756,7 @@ noMaintainerInformationWarning: "Betreiberinformationen sind nicht konfiguriert.
 noBotProtectionWarning: "Schutz vor Bots ist nicht konfiguriert."
 configure: "Konfigurieren"
 postToGallery: "Neuen Galeriebeitrag erstellen"
+attachmentRequired: "Mindestens 1 Anhang ist erforderlich."
 gallery: "Galerie"
 recentPosts: "Neue Beiträge"
 popularPosts: "Beliebte Beiträge"
diff --git a/locales/en-US.yml b/locales/en-US.yml
index db041e692..36a5999ed 100644
--- a/locales/en-US.yml
+++ b/locales/en-US.yml
@@ -756,6 +756,7 @@ noMaintainerInformationWarning: "Maintainer information is not configured."
 noBotProtectionWarning: "Bot protection is not configured."
 configure: "Configure"
 postToGallery: "Create new gallery post"
+attachmentRequired: "At least 1 attachment is required."
 gallery: "Gallery"
 recentPosts: "Recent posts"
 popularPosts: "Popular posts"
diff --git a/packages/client/src/pages/gallery/edit.vue b/packages/client/src/pages/gallery/edit.vue
index a6b1015bf..9d567c570 100644
--- a/packages/client/src/pages/gallery/edit.vue
+++ b/packages/client/src/pages/gallery/edit.vue
@@ -66,6 +66,14 @@ function remove(file) {
 }
 
 async function save() {
+	if (files.length === 0) {
+		os.alert({
+			type: 'error',
+			text: i18n.ts.attachmentRequired,
+		});
+		return;
+	}
+
 	if (props.postId) {
 		await os.apiWithDialog('gallery/posts/update', {
 			postId: props.postId,