diff --git a/pvmfw/src/dice.rs b/pvmfw/src/dice.rs
index 4e303ac..0aa1273 100644
--- a/pvmfw/src/dice.rs
+++ b/pvmfw/src/dice.rs
@@ -17,7 +17,6 @@
 use crate::cstr;
 use crate::helpers::flushed_zeroize;
 use core::ffi::c_void;
-use core::ffi::CStr;
 use core::mem::size_of;
 use core::slice;
 
diff --git a/pvmfw/src/helpers.rs b/pvmfw/src/helpers.rs
index c230784..bace8da 100644
--- a/pvmfw/src/helpers.rs
+++ b/pvmfw/src/helpers.rs
@@ -182,6 +182,6 @@
 #[macro_export]
 macro_rules! cstr {
     ($str:literal) => {{
-        CStr::from_bytes_with_nul(concat!($str, "\0").as_bytes()).unwrap()
+        core::ffi::CStr::from_bytes_with_nul(concat!($str, "\0").as_bytes()).unwrap()
     }};
 }