diff --git a/lib/hx509/version-script.map b/lib/hx509/version-script.map
index eae27d9d7..ed693d826 100644
--- a/lib/hx509/version-script.map
+++ b/lib/hx509/version-script.map
@@ -188,6 +188,7 @@ HEIMDAL_X509_1.0 {
 		hx509_pem_add_header;
 		hx509_pem_find_header;
 		hx509_pem_free_header;
+		hx509_pem_read;
 		hx509_xfree;
 		_hx509_write_file;
 		_hx509_map_file;