diff --git a/src/error.rs b/src/error.rs
index b5f7e6a..7914a44 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -6,10 +6,10 @@ pub enum Error {
     ZipError(#[from] zip::result::ZipError),
 
     #[error("Protocol Buffers error")]
-    DecodeFailed(#[from] prost::DecodeError),
+    ProtobufError(#[from] prost::DecodeError),
 
     #[error("Pickle error")]
-    UnpickleFailed(#[from] serde_pickle::Error),
+    PickleError(#[from] serde_pickle::Error),
 
     #[error("I/O error")]
     IoError(#[from] std::io::Error),
@@ -19,7 +19,7 @@ pub enum Error {
 
     #[cfg(feature = "meta")]
     #[error("JSON error")]
-    JsonDecodeFailed(#[from] serde_json::Error),
+    JsonError(#[from] serde_json::Error),
 
     #[error("invalid magic: {0:#X}, expected: {1:#X}")]
     InvalidMagic(u32, u32),
diff --git a/src/models/data/summary.rs b/src/models/data/summary.rs
index 4b0f545..208948f 100644
--- a/src/models/data/summary.rs
+++ b/src/models/data/summary.rs
@@ -23,7 +23,7 @@ pub struct Summary {
     pub camouflage_slot: u8,
 
     #[serde(rename(deserialize = "avgMmr"))]
-    pub average_mmr: Vec<f64>,
+    pub average_mmr: Vec<Option<f64>>,
 
     #[serde(rename(deserialize = "playerWaitTimes"))]
     pub player_wait_times: HashMap<u32, f64>,
diff --git a/tests/data.rs b/tests/data.rs
index 6c85bb4..e1dd368 100644
--- a/tests/data.rs
+++ b/tests/data.rs
@@ -22,7 +22,7 @@ fn data_ok() -> Result<()> {
     assert!(header.summary.is_mouse_enabled);
     assert_eq!(header.summary.matchmaker_type, 2);
     assert_eq!(header.summary.camouflage_slot, 1);
-    assert_eq!(header.summary.average_mmr, [59.29457753400008, 99.34182121604681]);
+    assert_eq!(header.summary.average_mmr, [Some(59.29457753400008), Some(99.34182121604681)]);
     assert_eq!(
         header.summary.account_database_ids,
         [
diff --git a/tests/replays/1682194799_malinovka_d48e8c0e45e2e2fcaf75cb139492575e.wotbreplay b/tests/replays/1682194799_malinovka_d48e8c0e45e2e2fcaf75cb139492575e.wotbreplay
new file mode 100644
index 0000000..00bffc5
Binary files /dev/null and b/tests/replays/1682194799_malinovka_d48e8c0e45e2e2fcaf75cb139492575e.wotbreplay differ