diff --git a/src/nix/daemon.cc b/src/nix/daemon.cc
index b5b128b81..e0e19eb88 100644
--- a/src/nix/daemon.cc
+++ b/src/nix/daemon.cc
@@ -202,7 +202,11 @@ static PeerInfo getPeerInfo(int remote)
 
 #if defined(SO_PEERCRED)
 
-    ucred cred;
+# if defined(__OpenBSD__)
+   struct sockpeercred cred;
+# else
+   ucred cred;
+# endif
     socklen_t credLen = sizeof(cred);
     if (getsockopt(remote, SOL_SOCKET, SO_PEERCRED, &cred, &credLen) == -1)
         throw SysError("getting peer credentials");