diff --git a/src/kube_cache.rs b/src/kube_cache.rs
index 9b9e671..2ae4641 100644
--- a/src/kube_cache.rs
+++ b/src/kube_cache.rs
@@ -18,6 +18,8 @@ use crate::{
     packets::{clientbound::status::StatusTrait, SendPacket},
     OpaqueError,
 };
+const MAIN_LABEL: &str = "tami.moe/minecraft";
+const PORT_LABEL: &str = "tami.moe/minecraft-port";
 
 /// This is the layer who is respinsible for caching requests.
 ///
@@ -57,12 +59,12 @@ impl KubeCache {
     }
     async fn get_deploys(&self) -> ObjectList<Deployment> {
         // let lp: ListParams = ListParams::default();
-        let lp: ListParams = ListParams::default().labels("tami.moe/minecraft");
+        let lp: ListParams = ListParams::default().labels(MAIN_LABEL);
         self.deployments.list(&lp).await.unwrap()
     }
     async fn get_srvs(&self) -> ObjectList<Service> {
         // let lp: ListParams = ListParams::default();
-        let lp: ListParams = ListParams::default().labels("tami.moe/minecraft");
+        let lp: ListParams = ListParams::default().labels(MAIN_LABEL);
         self.services.list(&lp).await.unwrap()
     }
 
@@ -453,8 +455,8 @@ where
     res.labels()
         .iter()
         .filter(|(key, value)| match key.as_str() {
-            "tami.moe/minecraft" => value.as_str() == addr,
-            "tami.moe/minecraft-port" => {
+            MAIN_LABEL => value.as_str() == addr,
+            PORT_LABEL => {
                 found_port = true;
                 value.as_str() == port
             }