diff --git a/nix/modules/default/default.nix b/nix/modules/default/default.nix
index aed8b1b7..91eba6d9 100644
--- a/nix/modules/default/default.nix
+++ b/nix/modules/default/default.nix
@@ -25,15 +25,6 @@ in
         pkgsText = "inputs.grapevine.packages.\${pkgs.system}";
       };
 
-    extraEnvironment = lib.mkOption {
-      type = types.attrsOf types.str;
-      description = ''
-        Extra environment variables to set for the process.
-      '';
-      default = {};
-      example = { RUST_BACKTRACE="yes"; };
-    };
-
     settings = lib.mkOption {
       type = types.submodule {
         freeformType = format.type;
@@ -85,7 +76,6 @@ in
     systemd.services.grapevine = {
       description = "Grapevine (Matrix homeserver)";
       wantedBy = [ "multi-user.target" ];
-      environment = cfg.extraEnvironment;
 
       # Keep sorted
       serviceConfig = {
diff --git a/src/main.rs b/src/main.rs
index bc390f3c..4a661b7c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -17,7 +17,7 @@ use axum_server::{
     bind, bind_rustls, tls_rustls::RustlsConfig, Handle as ServerHandle,
 };
 use figment::{
-    providers::{Env, Format, Toml},
+    providers::{Format, Toml},
     Figment,
 };
 use http::{
@@ -111,9 +111,7 @@ async fn try_main() -> Result<(), error::Main> {
     let args = args::parse();
 
     // Initialize config
-    let raw_config = Figment::new()
-        .merge(Toml::file(&args.config).nested())
-        .merge(Env::prefixed("GRAPEVINE_").global());
+    let raw_config = Figment::new().merge(Toml::file(&args.config).nested());
 
     let config = raw_config.extract::<Config>()?;