diff --git a/epan/dissectors/packet-gsm_cbsp.c b/epan/dissectors/packet-gsm_cbsp.c
index 9865ec489b..4c8331b072 100644
--- a/epan/dissectors/packet-gsm_cbsp.c
+++ b/epan/dissectors/packet-gsm_cbsp.c
@@ -701,8 +701,17 @@ dissect_cbsp_tlvs(tvbuff_t *tvb, int base_offs, int length, packet_info *pinfo,
 			proto_item_append_text(ti, ": %s", val_to_str_const(tmp_u, cbsp_category_names, ""));
 			break;
 		case CBSP_IEI_REP_PERIOD:
-			proto_tree_add_item_ret_uint(att_tree, hf_cbsp_rep_period, tvb, offset, len, ENC_BIG_ENDIAN, &tmp_u);
-			proto_item_append_text(ti, ": %u", tmp_u);
+			{
+				guint64 tmp_u64;
+				crumb_spec_t cbsp_rep_period_crumbs[] = {
+					{  0, 8 },
+					{ 12, 4 },
+					{  0, 0 }
+				};
+
+				proto_tree_add_split_bits_item_ret_val(att_tree, hf_cbsp_rep_period, tvb, offset<<3, cbsp_rep_period_crumbs, &tmp_u64);
+				proto_item_append_text(ti, ": %u", (guint16)tmp_u64);
+			}
 			break;
 		case CBSP_IEI_NUM_BCAST_REQ:
 			proto_tree_add_item_ret_uint(att_tree, hf_cbsp_num_bcast_req, tvb, offset, len, ENC_BIG_ENDIAN, &tmp_u);