diff --git a/cde/lib/csa/agent.c b/cde/lib/csa/agent.c
index c41ab794a..3c84a4499 100644
--- a/cde/lib/csa/agent.c
+++ b/cde/lib/csa/agent.c
@@ -156,15 +156,15 @@ _DtCm_init_agent()
 	}
  
 	if (registerrpc(_DtCm_transient, AGENTVERS, update_callback,
-	    (char *(*)())_DtCm_update_callback_1, _DtCm_xdr_Table_Res_4,
-	    _DtCm_xdr_Update_Status) == -1) {
+	    (char *(*)())_DtCm_update_callback_1, (xdrproc_t)_DtCm_xdr_Table_Res_4,
+	    (xdrproc_t)_DtCm_xdr_Update_Status) == -1) {
 		_DtCm_print_errmsg("Cannot register v1 callback handler\n");
 		_DtCm_print_errmsg("Callback cannot be enabled.\n");
 	}
 
 	if (registerrpc(_DtCm_transient, AGENTVERS_2, CMCB_UPDATE_CALLBACK,
 	    (char *(*)())cmcb_update_callback_2_svc,
-	    xdr_cmcb_update_callback_args, xdr_void) == -1) {
+	    (xdrproc_t)xdr_cmcb_update_callback_args, (xdrproc_t)xdr_void) == -1) {
 		_DtCm_print_errmsg("Cannot register v2 callback handler\n");
 		_DtCm_print_errmsg("Callback cannot be enabled.\n");
 	}