diff --git a/src/r0/keys/claim_keys.rs b/src/r0/keys/claim_keys.rs
index 0275fd1b..3b4dd450 100644
--- a/src/r0/keys/claim_keys.rs
+++ b/src/r0/keys/claim_keys.rs
@@ -23,8 +23,11 @@ ruma_api! {
     request {
         /// The time (in milliseconds) to wait when downloading keys from remote servers.
         /// 10 seconds is the recommended default.
-        #[serde(skip_serializing_if = "Option::is_none")]
-        #[serde(default, with = "crate::serde::duration::opt_ms")]
+        #[serde(
+            with = "crate::serde::duration::opt_ms",
+            default,
+            skip_serializing_if = "Option::is_none",
+        )]
         pub timeout: Option<Duration>,
 
         /// The keys to be claimed.
diff --git a/src/r0/keys/get_keys.rs b/src/r0/keys/get_keys.rs
index b6049a39..98628261 100644
--- a/src/r0/keys/get_keys.rs
+++ b/src/r0/keys/get_keys.rs
@@ -21,8 +21,11 @@ ruma_api! {
     request {
         /// The time (in milliseconds) to wait when downloading keys from remote servers.
         /// 10 seconds is the recommended default.
-        #[serde(skip_serializing_if = "Option::is_none")]
-        #[serde(default, with = "crate::serde::duration::opt_ms")]
+        #[serde(
+            with = "crate::serde::duration::opt_ms",
+            default,
+            skip_serializing_if = "Option::is_none",
+        )]
         pub timeout: Option<Duration>,
 
         /// The keys to be downloaded. An empty list indicates all devices for the corresponding user.
diff --git a/src/r0/presence/get_presence.rs b/src/r0/presence/get_presence.rs
index 9e344566..6424435b 100644
--- a/src/r0/presence/get_presence.rs
+++ b/src/r0/presence/get_presence.rs
@@ -30,8 +30,11 @@ ruma_api! {
         #[serde(skip_serializing_if = "Option::is_none")]
         pub currently_active: Option<bool>,
         /// The length of time in milliseconds since an action was performed by the user.
-        #[serde(skip_serializing_if = "Option::is_none")]
-        #[serde(default, with = "crate::serde::duration::opt_ms")]
+        #[serde(
+            with = "crate::serde::duration::opt_ms",
+            default,
+            skip_serializing_if = "Option::is_none",
+        )]
         pub last_active_ago: Option<Duration>,
         /// The user's presence state.
         pub presence: PresenceState,
diff --git a/src/r0/typing/create_typing_event.rs b/src/r0/typing/create_typing_event.rs
index d24dc82c..3731ad02 100644
--- a/src/r0/typing/create_typing_event.rs
+++ b/src/r0/typing/create_typing_event.rs
@@ -20,8 +20,11 @@ ruma_api! {
         #[ruma_api(path)]
         pub room_id: RoomId,
         /// The length of time in milliseconds to mark this user as typing.
-        #[serde(skip_serializing_if = "Option::is_none")]
-        #[serde(default, with = "crate::serde::duration::opt_ms")]
+        #[serde(
+            with = "crate::serde::duration::opt_ms",
+            default,
+            skip_serializing_if = "Option::is_none",
+        )]
         pub timeout: Option<Duration>,
         /// Whether the user is typing or not. If `false`, the `timeout` key can be omitted.
         pub typing: bool,
diff --git a/src/serde/duration/opt_ms.rs b/src/serde/duration/opt_ms.rs
index 9e304eda..0704324d 100644
--- a/src/serde/duration/opt_ms.rs
+++ b/src/serde/duration/opt_ms.rs
@@ -44,8 +44,11 @@ mod tests {
 
     #[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
     struct DurationTest {
-        #[serde(skip_serializing_if = "Option::is_none")]
-        #[serde(default, with = "crate::serde::duration::opt_ms")]
+        #[serde(
+            with = "crate::serde::duration::opt_ms",
+            default,
+            skip_serializing_if = "Option::is_none"
+        )]
         timeout: Option<Duration>,
     }