diff --git a/generator/src/generator/namespace.rs b/generator/src/generator/namespace.rs
index cc17cb37..95bc6d2d 100644
--- a/generator/src/generator/namespace.rs
+++ b/generator/src/generator/namespace.rs
@@ -3689,9 +3689,14 @@ impl<'ns, 'c> NamespaceGenerator<'ns, 'c> {
                 if let xcbdefs::TypeRef::BuiltIn(xcbdefs::BuiltInType::Bool) = type_type {
                     // Cast this to a u8 before calling try_into, because there's
                     // no TryFrom<bool> implementation.
-                    outln!(out, "let {var} = {var} as u8;", var = var_name);
+                    outln!(
+                        out,
+                        "let {var} = u8::from({var}).try_into()?;",
+                        var = var_name
+                    );
+                } else {
+                    outln!(out, "let {var} = {var}.try_into()?;", var = var_name);
                 }
-                outln!(out, "let {var} = {var}.try_into()?;", var = var_name);
             }
             if is_xproto_gravity(&enum_def) {
                 let enum_ns = enum_def.namespace.upgrade().unwrap();
diff --git a/src/protocol/xinput.rs b/src/protocol/xinput.rs
index cf996f2b..0c0fe200 100644
--- a/src/protocol/xinput.rs
+++ b/src/protocol/xinput.rs
@@ -12458,8 +12458,7 @@ impl<'input> XIGrabDeviceRequest<'input> {
         let (paired_device_mode, remaining) = u8::try_parse(remaining)?;
         let paired_device_mode = paired_device_mode.try_into()?;
         let (owner_events, remaining) = bool::try_parse(remaining)?;
-        let owner_events = owner_events as u8;
-        let owner_events = owner_events.try_into()?;
+        let owner_events = u8::from(owner_events).try_into()?;
         let remaining = remaining.get(1..).ok_or(ParseError::ParseError)?;
         let (mask_len, remaining) = u16::try_parse(remaining)?;
         let (mask, remaining) = crate::x11_utils::parse_list::<u32>(remaining, mask_len.try_into().or(Err(ParseError::ParseError))?)?;
@@ -13082,8 +13081,7 @@ impl<'input> XIPassiveGrabDeviceRequest<'input> {
         let (paired_device_mode, remaining) = u8::try_parse(remaining)?;
         let paired_device_mode = paired_device_mode.try_into()?;
         let (owner_events, remaining) = bool::try_parse(remaining)?;
-        let owner_events = owner_events as u8;
-        let owner_events = owner_events.try_into()?;
+        let owner_events = u8::from(owner_events).try_into()?;
         let remaining = remaining.get(2..).ok_or(ParseError::ParseError)?;
         let (mask, remaining) = crate::x11_utils::parse_list::<u32>(remaining, mask_len.try_into().or(Err(ParseError::ParseError))?)?;
         let (modifiers, remaining) = crate::x11_utils::parse_list::<u32>(remaining, num_modifiers.try_into().or(Err(ParseError::ParseError))?)?;