diff --git a/src/nix/daemon.cc b/src/nix/daemon.cc
index 8afcbe982..b5b128b81 100644
--- a/src/nix/daemon.cc
+++ b/src/nix/daemon.cc
@@ -210,9 +210,9 @@ static PeerInfo getPeerInfo(int remote)
 
 #elif defined(LOCAL_PEERCRED)
 
-#if !defined(SOL_LOCAL)
-#define SOL_LOCAL 0
-#endif
+# if !defined(SOL_LOCAL)
+# define SOL_LOCAL 0
+# endif
 
     xucred cred;
     socklen_t credLen = sizeof(cred);