diff --git a/cmd/root.go b/cmd/root.go
index d19e5c4..9899ccc 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -101,3 +101,15 @@ func initLogger() {
 
 	log.SetLevel(lvl)
 }
+
+func mapEnvVars(envs map[string]string, cmd *cobra.Command) {
+	for env, flag := range envs {
+		flag := cmd.Flags().Lookup(flag)
+		flag.Usage = fmt.Sprintf("%v [env %v]", flag.Usage, env)
+		if value := os.Getenv(env); value != "" {
+			if err := flag.Value.Set(value); err != nil {
+				log.Error(err)
+			}
+		}
+	}
+}
diff --git a/cmd/server.go b/cmd/server.go
index 4aa851e..4cb2beb 100644
--- a/cmd/server.go
+++ b/cmd/server.go
@@ -15,7 +15,6 @@ package cmd
 
 import (
 	"context"
-	"fmt"
 	"net/http"
 	"os"
 	"os/signal"
@@ -134,13 +133,5 @@ func init() {
 		"PHP_FPM_FIX_PROCESS_COUNT":  "phpfpm.fix-process-count",
 	}
 
-	for env, flag := range envs {
-		flag := serverCmd.Flags().Lookup(flag)
-		flag.Usage = fmt.Sprintf("%v [env %v]", flag.Usage, env)
-		if value := os.Getenv(env); value != "" {
-			if err := flag.Value.Set(value); err != nil {
-				log.Error(err)
-			}
-		}
-	}
+	mapEnvVars(envs, serverCmd)
 }