diff --git a/ipn/ipnlocal/local.go b/ipn/ipnlocal/local.go
index 8897eb813..c864a81a0 100644
--- a/ipn/ipnlocal/local.go
+++ b/ipn/ipnlocal/local.go
@@ -5485,7 +5485,7 @@ func shouldUseOneCGNATRoute(logf logger.Logf, mon *netmon.Monitor, controlKnobs
 			logf("shouldUseOneCGNATRoute: Could not determine if any interfaces use CGNAT: %v", err)
 			return false
 		}
-		logf("[v1] shouldUseOneCGNATRoute: macOS automatic=%v", !hasCGNATInterface)
+		logf("[v1] shouldUseOneCGNATRoute: %s automatic=%v", versionOS, !hasCGNATInterface)
 		if !hasCGNATInterface {
 			return true
 		}