diff --git a/Cargo.toml b/Cargo.toml
index 462b63e..eadb09e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "bme280"
-version = "0.2.0"
+version = "0.2.1"
 authors = ["Sean Bruton <sean@uberfoo.net>"]
 description = "A rust device driver for the Bosch BME280 temperature, humidity, and atmospheric pressure sensor and the Bosch BMP280 temperature, and atmospheric pressure sensor"
 repository = "https://github.com/uber-foo/bme280-rs"
diff --git a/src/lib.rs b/src/lib.rs
index 945ac9a..6b142e1 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -195,6 +195,7 @@ pub struct Measurements<E> {
     pub pressure: f32,
     /// percent relative humidity (`0` with BMP280)
     pub humidity: f32,
+    #[cfg_attr(feature = "serde", serde(skip))]
     _e: PhantomData<E>,
 }