diff --git a/foundry/operator/internal/controller/suite_env_test.go b/foundry/operator/internal/controller/suite_env_test.go
index 3f66ecbc..e64af2be 100644
--- a/foundry/operator/internal/controller/suite_env_test.go
+++ b/foundry/operator/internal/controller/suite_env_test.go
@@ -305,7 +305,7 @@ func newRawBundle() string {
 	return `{
 	_#def
 	_#def: {
-		env: string | *"dev"
+		env: string
 		modules: {
 			[string]: {
 				instance?: string
diff --git a/lib/project/deployment/deployer/deployer.go b/lib/project/deployment/deployer/deployer.go
index 56e04584..230ed51c 100644
--- a/lib/project/deployment/deployer/deployer.go
+++ b/lib/project/deployment/deployer/deployer.go
@@ -23,7 +23,6 @@ const (
 	// This is the hardcoded default environment for the deployment.
 	// We always deploy to the dev environment by default and do not allow
 	// the user to change this.
-	// This is also the default for the `env` field in the deployment module.
 	DEFAULT_ENV = "dev"
 
 	// This is the name of the environment file which is merged with the deployment module.
diff --git a/lib/schema/blueprint/project/deployment.cue b/lib/schema/blueprint/project/deployment.cue
index 67098d16..77af99c9 100644
--- a/lib/schema/blueprint/project/deployment.cue
+++ b/lib/schema/blueprint/project/deployment.cue
@@ -10,7 +10,7 @@ package project
 
 #ModuleBundle: {
 	// Env contains the environment to deploy the modules to.
-	env: string | *"dev"
+	env: string
 
 	// Modules contains the deployment modules.
 	modules: [string]: #Module