diff --git a/templates/config.alloy.erb b/templates/config.alloy.erb
index a894822..df6c0db 100644
--- a/templates/config.alloy.erb
+++ b/templates/config.alloy.erb
@@ -20,15 +20,15 @@ loki.source.file "system_logs" {
 loki.relabel "add_labels" {
   forward_to = [loki.write.loki.receiver]
 
-    rule {
-    action       = "replace"
-    source_label = "__host__"
-    target_label = "hostname"
+  rule {
+    action        = "replace"
+    source_labels = ["__host__"]
+    target_label  = "hostname"
   }
-    rule {
-    action       = "replace"
-    source_label = "${env.HOSTNAME}"
-    target_label = "hostname"
+  rule {
+    action        = "replace"
+    source_labels = "${env.HOSTNAME}"
+    target_label  = "hostname"
   }
   rule {
     action       = "replace"