diff --git a/libraries/persistent_store/src/lib.rs b/libraries/persistent_store/src/lib.rs
index a051716..f2753db 100644
--- a/libraries/persistent_store/src/lib.rs
+++ b/libraries/persistent_store/src/lib.rs
@@ -345,8 +345,6 @@
 
 #![cfg_attr(not(feature = "std"), no_std)]
 
-extern crate alloc;
-
 #[macro_use]
 extern crate alloc;