diff --git a/lib/openpam_dispatch.c b/lib/openpam_dispatch.c
index 4dca173..d95ed1e 100644
--- a/lib/openpam_dispatch.c
+++ b/lib/openpam_dispatch.c
@@ -105,7 +105,7 @@ openpam_dispatch(pam_handle_t *pamh,
 		if (chain->module->func[primitive] == NULL) {
 			openpam_log(PAM_LOG_ERROR, "%s: no %s()",
 			    chain->module->path, pam_sm_func_name[primitive]);
-			continue;
+			r = PAM_SYSTEM_ERR;
 		} else {
 			pamh->primitive = primitive;
 			pamh->current = chain;