diff --git a/src/util/virfirewall.h b/src/util/virfirewall.h
index 5248d600391b374fe5345f26954f29dd66807391..b04ab4870dba6fbbc170c72c1b85bdec96b069b1 100644
--- a/src/util/virfirewall.h
+++ b/src/util/virfirewall.h
@@ -54,8 +54,8 @@ void virFirewallFree(virFirewallPtr firewall);
  *
  * Returns the new rule
  */
-#define virFirewallAddRule(firewall, layer, ...) \
-        virFirewallAddRuleFull(firewall, layer, false, NULL, NULL, __VA_ARGS__)
+# define virFirewallAddRule(firewall, layer, ...) \
+         virFirewallAddRuleFull(firewall, layer, false, NULL, NULL, __VA_ARGS__)
 
 typedef int (*virFirewallQueryCallback)(virFirewallPtr firewall,
                                         const char *const *lines,