diff --git a/crates/config/src/sections/secrets.rs b/crates/config/src/sections/secrets.rs
index 2027a8a5a..341ea7150 100644
--- a/crates/config/src/sections/secrets.rs
+++ b/crates/config/src/sections/secrets.rs
@@ -59,6 +59,7 @@ pub enum Encryption {
 struct EncryptionRaw {
     /// File containing the encryption key for secure cookies.
     #[schemars(with = "Option<String>")]
+    #[serde(skip_serializing_if = "Option::is_none")]
     encryption_file: Option<Utf8PathBuf>,
 
     /// Encryption key for secure cookies.
@@ -68,6 +69,7 @@ struct EncryptionRaw {
         example = "example_secret"
     )]
     #[serde_as(as = "Option<serde_with::hex::Hex>")]
+    #[serde(skip_serializing_if = "Option::is_none")]
     encryption: Option<[u8; 32]>,
 }
 
diff --git a/docs/config.schema.json b/docs/config.schema.json
index 102857999..6867dd8d2 100644
--- a/docs/config.schema.json
+++ b/docs/config.schema.json
@@ -1530,7 +1530,6 @@
         },
         "encryption": {
           "description": "Encryption key for secure cookies.",
-          "default": null,
           "examples": [
             "0000111122223333444455556666777788889999aaaabbbbccccddddeeeeffff"
           ],