diff --git a/objects/ss7-attack/definition.json b/objects/ss7-attack/definition.json
index 6354c5d..e86cb16 100644
--- a/objects/ss7-attack/definition.json
+++ b/objects/ss7-attack/definition.json
@@ -34,6 +34,7 @@
     },
     "SccpCgGT": {
       "description": "Signaling Connection Control Part (SCCP) CgGT - Phone number.",
+      "multiple": true,
       "ui-priority": 0,
       "misp-attribute": "text"
     },
@@ -44,6 +45,7 @@
     },
     "SccpCgPC": {
       "description": "Signaling Connection Control Part (SCCP) CgPC - Phone number.",
+      "multiple": true,
       "ui-priority": 0,
       "misp-attribute": "text"
     },