diff --git a/go/journal2clickhouse/journal2clickhouse.go b/go/journal2clickhouse/journal2clickhouse.go
index fd117f89bb..6e5606babc 100644
--- a/go/journal2clickhouse/journal2clickhouse.go
+++ b/go/journal2clickhouse/journal2clickhouse.go
@@ -470,6 +470,7 @@ func main() {
 	}()
 
 	for hostname, remoteAddr := range scrapeHosts {
+		hostname, remoteAddr := hostname, remoteAddr
 		wg.Add(1)
 		fetchWG.Add(1)
 		go func() {