diff --git a/rep-0103.rst b/rep-0103.rst
index 4fc25dfbe..a37ae881e 100644
--- a/rep-0103.rst
+++ b/rep-0103.rst
@@ -131,7 +131,7 @@ In the case of cameras, there is often a second frame defined with a
 * x right
 * y down
 
-For outdoor systems where it is desireable to work under the
+For outdoor systems where it is desirable to work under the
 `north east down`_ (NED) convention, define an appropriately transformed
 secondary frame with the "_ned" suffix: