diff --git a/.env.example b/.env.example
index 893f587..8e27597 100644
--- a/.env.example
+++ b/.env.example
@@ -18,3 +18,4 @@ DATABASE_URL=postgresql://libretunes:password@localhost:5432/libretunes
 
 LIBRETUNES_AUDIO_PATH=assets/audio
 LIBRETUNES_IMAGE_PATH=assets/images
+LIBRETUNES_DISABLE_SIGNUP=true
diff --git a/docker-compose.yml b/docker-compose.yml
index eedd40b..42e5e7a 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -15,6 +15,7 @@ services:
       POSTGRES_DB: ${POSTGRES_DB}
       LIBRETUNES_AUDIO_PATH: /assets/audio
       LIBRETUNES_IMAGE_PATH: /assets/images
+      LIBRETUNES_DISABLE_SIGNUP: "true"
     volumes:
       - libretunes-audio:/assets/audio
       - libretunes-images:/assets/images
diff --git a/src/auth.rs b/src/auth.rs
index cea063b..f28eeb4 100644
--- a/src/auth.rs
+++ b/src/auth.rs
@@ -19,6 +19,11 @@ use crate::users::UserCredentials;
 /// Returns a Result with the error message if the user could not be created
 #[server(endpoint = "signup")]
 pub async fn signup(new_user: User) -> Result<(), ServerFnError> {
+	// Check LIBRETUNES_DISABLE_SIGNUP env var
+	if std::env::var("LIBRETUNES_DISABLE_SIGNUP").is_ok_and(|v| v == "true") {
+		return Err(ServerFnError::<NoCustomError>::ServerError("Signup is disabled".to_string()));
+	}
+
 	use crate::users::create_user;
 
 	// Ensure the user has no id, and is not a self-proclaimed admin