diff --git a/lib/roken/version-script.map b/lib/roken/version-script.map
index b67e82dc1..5a0fc7dde 100644
--- a/lib/roken/version-script.map
+++ b/lib/roken/version-script.map
@@ -87,6 +87,8 @@ HEIMDAL_ROKEN_1.0 {
 		rk_read_environment;
 		rk_readv;
 		rk_realloc;
+		rk_strerror;
+		rk_strerror_r;
 		rk_setprogname;
 		rk_simple_execle;
 		rk_simple_execlp;