diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 844b7b2bba..00e9a18e88 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -10810,10 +10810,18 @@ static int handle_request_subscribe(struct sip_pvt *p, struct sip_request *req,
 		int found = 0;
 		char *mailbox = NULL;
 		int mailboxsize = 0;
+		char *eventparam;
 
 		char *event = get_header(req, "Event");	/* Get Event package name */
 		char *accept = get_header(req, "Accept");
 
+		/* Find parameters to Event: header value and remove them for now */
+		eventparam = strchr(event, ";");
+		if (eventparam) {
+			*eventparam = '\0';
+			eventparam++;
+		}
+
  		if (!strcmp(event, "message-summary") && !strcmp(accept, "application/simple-message-summary")) {
 			mailbox = mailboxbuf;
 			mailboxsize = sizeof(mailboxbuf);