diff --git a/contributing/code/conventions.rst b/contributing/code/conventions.rst
index 6f102e8f6a2..e48eebd414e 100644
--- a/contributing/code/conventions.rst
+++ b/contributing/code/conventions.rst
@@ -75,7 +75,7 @@ must be used instead (where ``XXX`` is the name of the related thing):
     While "setXXX" and "replaceXXX" are very similar, there is one notable
     difference: "setXXX" may replace, or add new elements to the relation.
     "replaceXXX", on the other hand, cannot add new elements. If an unrecognized
-    key as passed to "replaceXXX" it must throw an exception.
+    key is passed to "replaceXXX" it must throw an exception.
 
 .. _contributing-code-conventions-deprecations: