diff --git a/epan/dissectors/packet-h248_3gpp.c b/epan/dissectors/packet-h248_3gpp.c
index 58f08e66d7..c0e3496e50 100644
--- a/epan/dissectors/packet-h248_3gpp.c
+++ b/epan/dissectors/packet-h248_3gpp.c
@@ -161,11 +161,11 @@ static gint ett_h248_3GCSD_evt_protres = -1;
 static gint ett_h248_3GCSD_evt_ratechg = -1;
 static gint ett_pkg_3GCSD_sig_actprot = -1;
 
-static void dissect_3gcsd_plmnbc(proto_tree* tree, tvbuff_t* tvb, packet_info* pinfo, int hfid, h248_curr_info_t* cu _U_, void* ignored _U_) {
+static void dissect_3gcsd_plmnbc(proto_tree* tree, tvbuff_t* tvb, packet_info* pinfo, int hfid, h248_curr_info_t* cu _U_, void* implicit_param) {
 	asn1_ctx_t asn1_ctx;
 
 	asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
-	dissect_ber_octet_string(implicit ? *((gboolean*)implicit) : FALSE, &asn1_ctx, tree, tvb, 0, hfid, NULL);
+	dissect_ber_octet_string(implicit_param ? *((gboolean*)implicit_param) : FALSE, &asn1_ctx, tree, tvb, 0, hfid, NULL);
 	de_bearer_cap(tvb, tree, pinfo, 4, tvb_length(tvb)-4, NULL, 0);
 }