diff --git a/Doc/lib/libos.tex b/Doc/lib/libos.tex
index 33c1e54..4220d6d 100644
--- a/Doc/lib/libos.tex
+++ b/Doc/lib/libos.tex
@@ -750,7 +750,7 @@
 
 \begin{funcdesc}{removedirs}{path}
 \index{directory!deleting}
-Recursive directory removal function.  Works like
+Removes directories recursively.  Works like
 \function{rmdir()} except that, if the leaf directory is
 successfully removed, directories corresponding to rightmost path
 segments will be pruned way until either the whole path is consumed or