diff --git a/README.rst b/README.rst
index 56bcc4a..5e0fc8d 100644
--- a/README.rst
+++ b/README.rst
@@ -8,7 +8,7 @@ Numba Celltree
 .. image:: https://img.shields.io/badge/code%20style-black-000000.svg?style=flat-square
    :target: https://github.com/psf/black
 
-Finding your way around in an unstructured meshes is difficult. Numba Celltree
+Finding your way around in unstructured meshes is difficult. Numba Celltree
 provides methods for searching for points, lines, boxes, and cells (convex
 polygons) in a two dimensional unstructured mesh.
 
diff --git a/docs/index.rst b/docs/index.rst
index 66b724e..d6e0722 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -1,7 +1,7 @@
 Numba Celltree
 ==============
 
-Finding your way around in an unstructured meshes is difficult. Numba Celltree
+Finding your way around in unstructured meshes is difficult. Numba Celltree
 provides methods for searching for points, lines, boxes, and cells (convex
 polygons) in a two dimensional unstructured mesh.