diff --git a/doc/runtime_const.rst b/doc/runtime_const.rst
index dc926360a913ee6b83cc1a273bf67989cca74c86..864a641c7ce303e3d46ecfecbf8c6d443113e364 100644
--- a/doc/runtime_const.rst
+++ b/doc/runtime_const.rst
@@ -12,7 +12,7 @@ OpenCL Runtime: Constants
 
         Only available with OpenCL 3.0 or newer.
 
-    .. versionaddedd:: 2020.3
+    .. versionadded:: 2020.3
 
     .. method:: __init__(version, name)
     .. attribute:: version