diff --git a/build/src/lib.rs b/build/src/lib.rs
index f9a2e204..ffc9a897 100644
--- a/build/src/lib.rs
+++ b/build/src/lib.rs
@@ -109,7 +109,7 @@ pub fn generate_image_id_sol(guests: &[GuestListEntry]) -> Result<Vec<u8>> {
         .iter()
         .map(|guest| {
             let name = guest.name.to_uppercase().replace('-', "_");
-            let image_id = hex::encode(Digest::from(guest.image_id));
+            let image_id = hex::encode(guest.image_id);
             format!("bytes32 public constant {name}_ID = bytes32(0x{image_id});")
         })
         .collect();