diff --git a/src/doc/trpl/rust-inside-other-languages.md b/src/doc/trpl/rust-inside-other-languages.md
index a1ae50a0c53..204dd3895c3 100644
--- a/src/doc/trpl/rust-inside-other-languages.md
+++ b/src/doc/trpl/rust-inside-other-languages.md
@@ -217,7 +217,7 @@ end
 
 Hello.process
 
-puts "done!”
+puts "done!"
 ```
 
 Before we can run this, we need to install the `ffi` gem: