diff --git a/crates/doc/src/cjk.rs b/crates/doc/src/cjk.rs
index 3af20dc11..1ad2221e4 100644
--- a/crates/doc/src/cjk.rs
+++ b/crates/doc/src/cjk.rs
@@ -60,7 +60,7 @@ pub struct Kinsoku {
 impl Kinsoku {
     /// Explicitly supplied character sets take precedence over the fallback table.
     pub fn allows(&self, a: char, b: char) -> bool {
-        !self.no_end.contains(a) && !self.no_start.contains(b) && !(a == b && self.inseparable.contains(a))
+        !(self.no_end.contains(a) || self.no_start.contains(b) || (a == b && self.inseparable.contains(a)))
     }
 }