diff --git a/Doc/lib/libdoctest.tex b/Doc/lib/libdoctest.tex
index 494a35f239d..072e9832b66 100644
--- a/Doc/lib/libdoctest.tex
+++ b/Doc/lib/libdoctest.tex
@@ -967,7 +967,7 @@ runner.run(suite)
   Options may be provided as keyword arguments:
 
   Optional argument \var{module_relative} specifies how
-  the the filenames in \var{paths} should be interpreted:
+  the filenames in \var{paths} should be interpreted:
 
   \begin{itemize}
   \item If \var{module_relative} is \code{True} (the default), then