constraint groking code

diff --git a/libasn1fix/asn1fix_value.c b/libasn1fix/asn1fix_value.c
index a22fd3d..a0560ed 100644
--- a/libasn1fix/asn1fix_value.c
+++ b/libasn1fix/asn1fix_value.c
@@ -21,6 +21,7 @@
 	 * 1. Find the terminal type for this assignment.
 	 */
 	type_expr = asn1f_find_terminal_type(arg, expr, 0);
+	DEBUG("%s(): terminal type %p", __func__, type_expr);
 	if(type_expr == 0) {
 		DEBUG("\tTerminal type for %s not found", expr->Identifier);
 		return -1;