diff --git a/docs/src/developing/on-chain-programs/developing-rust.md b/docs/src/developing/on-chain-programs/developing-rust.md
index 52cdfdbf3..488c81bdf 100644
--- a/docs/src/developing/on-chain-programs/developing-rust.md
+++ b/docs/src/developing/on-chain-programs/developing-rust.md
@@ -233,7 +233,6 @@ single-threaded environment, and must be deterministic:
   - `std::net`
   - `std::os`
   - `std::future`
-  - `std::net`
   - `std::process`
   - `std::sync`
   - `std::task`