diff --git a/src/dsql/metd.epp b/src/dsql/metd.epp
index 4e406a8bad..994ae3690a 100644
--- a/src/dsql/metd.epp
+++ b/src/dsql/metd.epp
@@ -1074,6 +1074,9 @@ dsql_udf* METD_get_function(dsql_req* request, const dsql_str* name)
     ptr = userFunc->udf_arguments->nod_arg + arg_count;
     while (stack) {
         *--ptr = (DSQL_NOD) LLS_POP (&stack);
+		// dimitr: adjust the UDF arguments for CSTRING
+		if ((*ptr)->nod_desc.dsc_dtype == dtype_cstring)
+			(*ptr)->nod_desc.dsc_dtype = dtype_text;
     }