diff --git a/src/doc/trpl/traits.md b/src/doc/trpl/traits.md
index ea5d2ed711fed0f0aac66be1db7c909014ff5339..51ee4bf0cdc2833f1285d89bb4f118f3d7c0b751 100644
--- a/src/doc/trpl/traits.md
+++ b/src/doc/trpl/traits.md
@@ -192,7 +192,7 @@ Here’s the error:
 ```text
 error: type `std::fs::File` does not implement any method in scope named `write`
 
-let result = f.write(b”whatever”);
+let result = f.write(b"whatever");
                ^~~~~~~~~~~~~~~~~~
 ```