diff --git a/i18n/api/en.json b/i18n/api/en.json
index 03cbde1e6..b1da973d3 100644
--- a/i18n/api/en.json
+++ b/i18n/api/en.json
@@ -23,7 +23,7 @@
 	"apihelp-echomarkseen-summary": "Mark notifications as seen for the current user.",
 	"apihelp-echomarkseen-example-1": "Mark notifications of all types as seen",
 	"apihelp-echomarkseen-param-type": "Type of notifications to mark as seen: 'alert', 'message' or 'all'.",
-	"apihelp-echomarkseen-param-timestampFormat": "Timestamp format to use for output, 'ISO_8601' or 'MW'.  'MW' is deprecated here, so all clients should switch to 'ISO_8601'.  This parameter will be removed, and 'ISO_8601' will become the only output format.",
+	"apihelp-echomarkseen-param-timestampFormat": "Timestamp format to use for output, 'ISO_8601' or 'MW'. 'MW' is deprecated here, so all clients should switch to 'ISO_8601'. This parameter will be removed, and 'ISO_8601' will become the only output format.",
 	"apihelp-echomute-description": "Mute or unmute notifications from certain users or pages.",
 	"apihelp-echomute-summary": "Mute or unmute notifications from certain users or pages.",
 	"apihelp-echomute-param-type": "Which mute list to add to or remove from",
@@ -78,7 +78,7 @@
 	"apihelp-echoarticlereminder-param-comment": "Optional user comment to include in the reminder",
 	"apihelp-echoarticlereminder-example-1": "Create an article reminder notification for tomorrow with comment",
 	"apihelp-echoarticlereminder-example-2": "Create an article reminder notification for tomorrow without comment",
-	"apiwarn-echo-deprecation-timestampformat": "The MW timestamp output format is deprecated here. In the future, ISO 8601 will always be used for the output timestamp format.  Adjust your client and set <var>timestampFormat</var> to <kbd>ISO_8601</kbd>.",
+	"apiwarn-echo-deprecation-timestampformat": "The MW timestamp output format is deprecated here. In the future, ISO 8601 will always be used for the output timestamp format. Adjust your client and set <var>timestampFormat</var> to <kbd>ISO_8601</kbd>.",
 	"apiwarn-echo-deprecation-flyout": "<kbd>notformat=flyout</kbd> has been deprecated and will be removed soon. Use <kbd>notformat=model</kbd> to get the raw data or <kbd>notformat=special</kbd> for pre-rendered HTML.",
 	"apiwarn-echo-deprecation-html": "<kbd>notformat=html</kbd> has been deprecated and will be removed soon. Use <kbd>notformat=special</kbd> instead.",
 	"apierror-echo-event-creation-failed": "Could not create Echo event",