diff --git a/README.rst b/README.rst
index 4b2b2bcf50f973f7e3fe9d37e5d41e87db68889e..c1eb8252d5463d0f38da9385a367ced49aeb7c70 100644
--- a/README.rst
+++ b/README.rst
@@ -17,7 +17,7 @@ EMBL utilities
 
 ``qs`` - collect queue status across different SGE clusters/queues. Requires key-based authentication with SSH.
 
-``mv_keep_parents`` - equivalent to ``cp --parents src/*.txt dest/`` but moving instead of copying. Optionally keeping source directories if empty with option ``-k``.
+``mv_keep_parents`` - equivalent to ``cp --parents src/*.txt dest/`` but moving instead of copying. Passing ``-k`` will keep empty directories in ``src/``.
 
 Examples
 ========