diff --git a/pkg/ddevapp/cakephp.go b/pkg/ddevapp/cakephp.go
index 542566b334f..e5a47d04fae 100644
--- a/pkg/ddevapp/cakephp.go
+++ b/pkg/ddevapp/cakephp.go
@@ -61,7 +61,7 @@ func cakephpPostStartAction(app *DdevApp) error {
 		"export DATABASE_URL":                dbConnection + "://db:db@db:" + port + "/db",
 		"export EMAIL_TRANSPORT_DEFAULT_URL": "smtp://localhost:1025",
 		"export SECURITY_SALT":               util.HashSalt(app.GetName()),
-		"export DEBUGKIT_SAFE_TLD":           "site",
+		"export DEBUG_KIT_SAFE_TLD":          "site",
 	}
 	err = WriteProjectEnvFile(envFilePath, envMap, envText)
 	if err != nil {