diff --git a/satrs-core/src/cfdp/mod.rs b/satrs-core/src/cfdp/mod.rs
index 527ca05..f50faff 100644
--- a/satrs-core/src/cfdp/mod.rs
+++ b/satrs-core/src/cfdp/mod.rs
@@ -1,6 +1,7 @@
 use crc::{Crc, CRC_32_CKSUM};
 use spacepackets::util::UnsignedByteField;
 
+#[cfg(feature = "std")]
 pub mod dest;
 pub mod user;