diff --git a/libasn1print/asn1print.c b/libasn1print/asn1print.c
index df3a93f..1378486 100644
--- a/libasn1print/asn1print.c
+++ b/libasn1print/asn1print.c
@@ -668,6 +668,7 @@
 		printf("{");
 		TQ_FOR(se, &(tc->rhs_pspecs->members), next) {
 			asn1print_expr(asn, mod, se, flags, level + 1);
+			if(TQ_NEXT(se, next)) printf(", ");
 		}
 		printf("}");
 	}