diff --git a/epan/dissectors/packet-sdp.c b/epan/dissectors/packet-sdp.c
index 9e936f4568..0c933f8194 100644
--- a/epan/dissectors/packet-sdp.c
+++ b/epan/dissectors/packet-sdp.c
@@ -1686,17 +1686,19 @@ static void dissect_sdp_media_attribute(tvbuff_t *tvb, packet_info *pinfo, proto
 
       /* Port is after next ':' */
       port_offset = tvb_find_guint8(tvb, address_offset, -1, ':');
+	  /* Check if port is present if not skipp */
+	  if(port_offset!=-1){
+		  /* Port ends with '/' */
+		  port_end_offset = tvb_find_guint8(tvb, port_offset, -1, '/');
 
-      /* Port ends with '/' */
-      port_end_offset = tvb_find_guint8(tvb, port_offset, -1, '/');
-
-      /* Attempt to convert address */
-      if (inet_pton(AF_INET, (char*)tvb_get_ephemeral_string(tvb, address_offset, port_offset-address_offset), &msrp_ipaddr) > 0) {
-        /* Get port number */
-        msrp_port_number = atoi((char*)tvb_get_ephemeral_string(tvb, port_offset+1, port_end_offset-port_offset-1));
-        /* Set flag so this info can be used */
-        msrp_transport_address_set = TRUE;
-      }
+		  /* Attempt to convert address */
+		  if (inet_pton(AF_INET, (char*)tvb_get_ephemeral_string(tvb, address_offset, port_offset-address_offset), &msrp_ipaddr) > 0) {
+			/* Get port number */
+			msrp_port_number = atoi((char*)tvb_get_ephemeral_string(tvb, port_offset+1, port_end_offset-port_offset-1));
+			/* Set flag so this info can be used */
+			msrp_transport_address_set = TRUE;
+		  }
+	  }
     }
     break;
   case SDP_H248_ITEM: