diff --git a/doc/langref.md b/doc/langref.md
index e4677d717b56ad9740f305001c1236c59e512134..a70503a1372c282f054a8c7f4fd9d80898bbbbff 100644
--- a/doc/langref.md
+++ b/doc/langref.md
@@ -177,7 +177,7 @@ x{}
 &&
 ||
 ?? %%
-= *= /= %= += -= <<= >>= &= ^= |= &&= ||=
+= *= /= %= += -= <<= >>= &= ^= |=
 ```
 
 ## Types