diff --git a/rust/lib/mammoth/src/bindings.rs b/rust/lib/mammoth/src/bindings.rs
index 6fdfc13..aaffeb5 100644
--- a/rust/lib/mammoth/src/bindings.rs
+++ b/rust/lib/mammoth/src/bindings.rs
@@ -1,7 +1,5 @@
 /* automatically generated by rust-bindgen 0.69.4 */
 
-pub type zcap = u64;
-
 pub const _STDINT_H: u32 = 1;
 pub const _FEATURES_H: u32 = 1;
 pub const _ISOC95_SOURCE: u32 = 1;