diff --git a/drv/lpc55-syscon-api/src/lib.rs b/drv/lpc55-syscon-api/src/lib.rs
index 3a44a34964..bd918d5618 100644
--- a/drv/lpc55-syscon-api/src/lib.rs
+++ b/drv/lpc55-syscon-api/src/lib.rs
@@ -10,7 +10,7 @@
 
 #![no_std]
 
-use userlib::*;
+use userlib::{sys_send, FromPrimitive};
 use zerocopy::AsBytes;
 
 /// Peripheral numbering.