diff --git a/Debugging.Rmd b/Debugging.Rmd
index d55abf30e..f7fd95a76 100644
--- a/Debugging.Rmd
+++ b/Debugging.Rmd
@@ -449,7 +449,7 @@ There are other ways for a function to fail apart from throwing an error:
 
 *   A function might never return. This is particularly hard to debug
     automatically, but sometimes terminating the function and looking at the
-    `traceback()` is informative. Otherwise, use use print debugging, 
+    `traceback()` is informative. Otherwise, use print debugging, 
     as in Section \@ref(print-debugging).
 
 *   The worst scenario is that your code might crash R completely, leaving you