diff --git a/doc/source/first_contribution_swift.rst b/doc/source/first_contribution_swift.rst
index 5eddf62ab5..5e00b7cc4c 100644
--- a/doc/source/first_contribution_swift.rst
+++ b/doc/source/first_contribution_swift.rst
@@ -76,7 +76,7 @@ commit hook. You only need to do this once::
     git review -s
 
 To create your development branch (substitute branch_name for a name of your
-choice:
+choice::
 
     git checkout -b <branch_name>