diff --git a/servers/slapd/back-perl/config.c b/servers/slapd/back-perl/config.c
index 886113f227..0ef8bbfb24 100644
--- a/servers/slapd/back-perl/config.c
+++ b/servers/slapd/back-perl/config.c
@@ -59,7 +59,7 @@ perl_back_db_config(
 		eval_pv( eval_str, 0 );
 
 		if (SvTRUE(ERRSV)) {
-			fprintf(stderr , "Error %s\n", SvPV(ERRSV,  na)) ;
+			fprintf(stderr , "Error %s\n", SvPV(ERRSV, n_a)) ;
 		}
 #else
 		snprintf( eval_str, EVAL_BUF_SIZE, "%s.pm", argv[1] );