diff --git a/cli/app/new.go b/cli/app/new.go
index 7a3d6970..4c3d4243 100644
--- a/cli/app/new.go
+++ b/cli/app/new.go
@@ -172,9 +172,9 @@ type AppSecrets map[string]string
 // createSecrets creates all secrets for a new app.
 func createSecrets(cl *dockerClient.Client, secretsConfig map[string]string, sanitisedAppName string) (AppSecrets, error) {
 	// NOTE(d1): trim to match app.StackName() implementation
-	if len(sanitisedAppName) > 45 {
-		logrus.Debugf("trimming %s to %s to avoid runtime limits", sanitisedAppName, sanitisedAppName[:45])
-		sanitisedAppName = sanitisedAppName[:45]
+	if len(sanitisedAppName) > config.MAX_SANITISED_APP_NAME_LENGTH {
+		logrus.Debugf("trimming %s to %s to avoid runtime limits", sanitisedAppName, sanitisedAppName[:config.MAX_SANITISED_APP_NAME_LENGTH])
+		sanitisedAppName = sanitisedAppName[:config.MAX_SANITISED_APP_NAME_LENGTH]
 	}
 
 	secrets, err := secret.GenerateSecrets(cl, secretsConfig, sanitisedAppName, internal.NewAppServer)
@@ -262,8 +262,8 @@ func ensureServerFlag() error {
 }
 
 func ensureSecretLengths(secrets map[string]string, domainName string, sanitisedAppName string) error {
-	if len(sanitisedAppName) > 45 {
-		sanitisedAppName = sanitisedAppName[:45]
+	if len(sanitisedAppName) > config.MAX_SANITISED_APP_NAME_LENGTH {
+		sanitisedAppName = sanitisedAppName[:config.MAX_SANITISED_APP_NAME_LENGTH]
 	}
 
 	domainAndFormatLength := len(sanitisedAppName) + 4
diff --git a/pkg/config/app.go b/pkg/config/app.go
index 95dc7784..15e7d972 100644
--- a/pkg/config/app.go
+++ b/pkg/config/app.go
@@ -57,9 +57,9 @@ func (a App) StackName() string {
 
 	stackName := SanitiseAppName(a.Name)
 
-	if len(stackName) > 45 {
-		logrus.Debugf("trimming %s to %s to avoid runtime limits", stackName, stackName[:45])
-		stackName = stackName[:45]
+	if len(stackName) > MAX_SANITISED_APP_NAME_LENGTH {
+		logrus.Debugf("trimming %s to %s to avoid runtime limits", stackName, stackName[:MAX_SANITISED_APP_NAME_LENGTH])
+		stackName = stackName[:MAX_SANITISED_APP_NAME_LENGTH]
 	}
 
 	a.Env["STACK_NAME"] = stackName
diff --git a/pkg/config/env.go b/pkg/config/env.go
index 0874fb57..98891880 100644
--- a/pkg/config/env.go
+++ b/pkg/config/env.go
@@ -34,6 +34,8 @@ var REPOS_BASE_URL = "https://git.coopcloud.tech/coop-cloud"
 var CATALOGUE_JSON_REPO_NAME = "recipes-catalogue-json"
 var SSH_URL_TEMPLATE = "ssh://git@git.coopcloud.tech:2222/coop-cloud/%s.git"
 
+const MAX_SANITISED_APP_NAME_LENGTH = 45
+
 // GetServers retrieves all servers.
 func GetServers() ([]string, error) {
 	var servers []string