1diff --git b/src/lib.rs a/src/lib.rs
2index 53bee07..923d672 100644
3--- b/src/lib.rs
4+++ a/src/lib.rs
5@@ -45,9 +45,10 @@
6 //! is that after it is initialized, it can't be modified.
7
8
9+// ANDROID: Unconditionally use std to allow building as a dylib.
10 #[cfg(not(test))]
11 #[macro_use]
12-extern crate core as std;
13+extern crate std;
14 #[cfg(feature = "serde")]
15 extern crate serde;
16
17