diff --git a/objects/person/definition.json b/objects/person/definition.json
index 4944afe..ab1c473 100644
--- a/objects/person/definition.json
+++ b/objects/person/definition.json
@@ -79,7 +79,7 @@
       "description": "The IM application used by this person.",
       "disable_correlation": true,
       "misp-attribute": "text",
-      "multiple": "true",
+      "multiple": true,
       "sane_default": [
         "WhatsApp",
         "Google Hangouts",
@@ -241,4 +241,4 @@
   ],
   "uuid": "a15b0477-e9d1-4b9c-9546-abe78a4f4248",
   "version": 16
-}
\ No newline at end of file
+}