diff --git a/libraries/libldap/schema.c b/libraries/libldap/schema.c
index e404a32724..3722c16a9d 100644
--- a/libraries/libldap/schema.c
+++ b/libraries/libldap/schema.c
@@ -295,7 +295,7 @@ ldap_objectclass2str( LDAP_OBJECT_CLASS * oc )
 	print_whsp(ss);
 	print_literal(ss,")");
 
-	retstring = safe_string_val(ss);
+	retstring = strdup(safe_string_val(ss));
 	safe_string_free(ss);
 	return(retstring);
 }
@@ -394,7 +394,7 @@ ldap_attributetype2str( LDAP_ATTRIBUTE_TYPE * at )
 	print_whsp(ss);
 	print_literal(ss,")");
 
-	retstring = safe_string_val(ss);
+	retstring = strdup(safe_string_val(ss));
 	safe_string_free(ss);
 	return(retstring);
 }