diff --git a/aleksis/core/frontend/components/person/AdditionalImage.vue b/aleksis/core/frontend/components/person/AdditionalImage.vue
index 9798e37b3a8b439a5cb30bbf3f3c26fbf4bc8785..9239c59c62e4d38e3a789d5bb3c8c59a8d86f901 100644
--- a/aleksis/core/frontend/components/person/AdditionalImage.vue
+++ b/aleksis/core/frontend/components/person/AdditionalImage.vue
@@ -58,7 +58,7 @@ export default {
       default: false,
     },
     activatorMaxWidth: {
-      type: String,
+      type: [Number, String],
       default: undefined,
     },
   },