diff --git a/src/cksum/build.rs b/src/cksum/build.rs
index 37c48db5c..00c5c0fb4 100644
--- a/src/cksum/build.rs
+++ b/src/cksum/build.rs
@@ -30,7 +30,7 @@ fn main() {
     let file = File::create(&Path::new(&out_dir).join("crc_table.rs")).unwrap();
     write!(
         &file,
-        "const CRC_TABLE: [u32; {}] = {:?};",
+        "#[allow(clippy::unreadable_literal)]\nconst CRC_TABLE: [u32; {}] = {:?};",
         CRC_TABLE_LEN, table
     ).unwrap();
 }
diff --git a/src/factor/build.rs b/src/factor/build.rs
index 202be08b0..d1e73d5a2 100644
--- a/src/factor/build.rs
+++ b/src/factor/build.rs
@@ -149,5 +149,6 @@ const PREAMBLE: &'static str = r##"/*
 // Please do not edit by hand. Instead, modify and
 // re-run src/factor/gen_tables.rs.
 
+#[allow(clippy::unreadable_literal)]
 pub const P_INVS_U64: &[(u64, u64, u64)] = &[
    "##;