diff --git a/libraries/libldap/init.c b/libraries/libldap/init.c
index 080cd336d0..e123e06118 100644
--- a/libraries/libldap/init.c
+++ b/libraries/libldap/init.c
@@ -365,7 +365,7 @@ static void openldap_ldap_init_w_env(
 }
 
 static void
-ldap_int_destroy_global_options()
+ldap_int_destroy_global_options(void)
 {
 	struct ldapoptions *gopts = LDAP_INT_GLOBAL_OPT();