diff --git a/src/decoder/serde.rs b/src/decoder/serde.rs
index f20ea4b5..fe99463e 100644
--- a/src/decoder/serde.rs
+++ b/src/decoder/serde.rs
@@ -592,12 +592,12 @@ impl<'de> Deserialize<'de> for TimeStamp {
 
         match Bson::deserialize(deserializer)? {
             Bson::TimeStamp(ts) => {
-                let ts = ts.to_be();
+                let ts = ts.to_le();
 
                 Ok(TimeStamp { t: ((ts as u64) >> 32) as u32,
                                i: (ts & 0xFFFF_FFFF) as u32, })
             }
-            _ => Err(D::Error::custom("expecting UtcDateTime")),
+            _ => Err(D::Error::custom("expecting TimeStamp")),
         }
     }
 }
diff --git a/tests/serde.rs b/tests/serde.rs
index 569c83fb..59809494 100644
--- a/tests/serde.rs
+++ b/tests/serde.rs
@@ -69,7 +69,7 @@ fn test_de_timestamp() {
     }
 
     let foo: Foo = bson::from_bson(Bson::Document(doc! {
-        "ts": Bson::TimeStamp(0x0A00_0000_0C00_0000),
+        "ts": Bson::TimeStamp(0x0000_000C_0000_000A),
     })).unwrap();
 
     assert_eq!(foo.ts, TimeStamp { t: 12, i: 10 });