diff --git a/src/lib.rs b/src/lib.rs
index 5e1f440a..500f543b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -400,6 +400,7 @@ macro_rules! __impl_all_bitflags {
                 const $Flag: $T = 0;
             )+
         }
+        #[allow(non_snake_case)]
         impl __BitFlags for $BitFlags {
             $(
                 __impl_bitflags! {
@@ -449,6 +450,7 @@ macro_rules! __impl_bitflags {
 
                 // Conditionally override the check for just those flags that
                 // are not #[cfg]ed away.
+                #[allow(non_snake_case)]
                 impl __BitFlags for $BitFlags {
                     $(
                         __impl_bitflags! {