diff --git a/frontend/src/ts/popups/save-custom-text-popup.ts b/frontend/src/ts/popups/save-custom-text-popup.ts
index 9e133aec8..63928ee3d 100644
--- a/frontend/src/ts/popups/save-custom-text-popup.ts
+++ b/frontend/src/ts/popups/save-custom-text-popup.ts
@@ -75,6 +75,11 @@ function save(): boolean {
     return false;
   }
 
+  if (text.length === 0) {
+    Notifications.add("Custom text can't be empty", 0);
+    return false;
+  }
+
   text = text.replace(/( *(\r\n|\r|\n) *)/g, "\n ");
 
   CustomText.setCustomText(name, text, checkbox);