diff --git a/server/src/config.rs b/server/src/config.rs
index 5ad8fc8..cb75046 100644
--- a/server/src/config.rs
+++ b/server/src/config.rs
@@ -123,6 +123,7 @@ pub struct Config {
     pub garbage_collection: GarbageCollectionConfig,
 
     /// JSON Web Token.
+    #[serde(default = "Default::default")]
     pub jwt: JWTConfig,
 
     /// (Deprecated Stub)
@@ -399,6 +400,16 @@ fn load_database_url_from_env() -> String {
     ))
 }
 
+impl Default for JWTConfig {
+    fn default() -> Self {
+        Self {
+            token_bound_issuer: None,
+            token_bound_audiences: None,
+            signing_config: load_jwt_signing_config_from_env(),
+        }
+    }
+}
+
 impl CompressionConfig {
     pub fn level(&self) -> CompressionLevel {
         if let Some(level) = self.level {