diff --git a/src/strobe.rs b/src/strobe.rs
--- a/src/strobe.rs
+++ b/src/strobe.rs
@@ -64,7 +64,9 @@
         #[$doc]
         pub fn $name(&mut self, data: &mut [u8]) {
             let flags = $flags;
-            self.operate(flags, data, self.prev_flags == flags);
+            let prev_flags = self.prev_flags.bits();
+            let more = prev_flags.ct_eq(&flags.bits());
+            self.operate(flags, data, bool::from(more));
         }
     )*
     };
@@ -78,7 +80,9 @@
         #[$doc]
         pub fn $name(&mut self, data: &[u8]) {
             let flags = $flags;
-            self.operate_no_mutate(flags, data, self.prev_flags == flags);
+            let prev_flags = self.prev_flags.bits();
+            let more = prev_flags.ct_eq(&flags.bits());
+            self.operate_no_mutate(flags, data, bool::from(more));
         }
     )*
     };
@@ -436,7 +440,7 @@
 
     define_non_mut_operations! {
         /// AD
-        pub fn ad(OpFlags::App.into());
+        pub fn ad(BitFlags::from(OpFlags::App));
         /// META AD
         pub fn meta_ad(OpFlags::App | OpFlags::Meta);
         /// KEY