diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index aec0351ba..57fe834d9 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -331,7 +331,7 @@
     <string name="manga_error_description_pattern">Error details:&lt;br&gt;&lt;tt&gt;%1$s&lt;/tt&gt;&lt;br&gt;&lt;br&gt;1. Try to &lt;a href="%2$s"&gt;open manga in a web browser&lt;/a&gt; to ensure it is available on its source&lt;br&gt;2. Make sure you are using the &lt;a href="kotatsu://about"&gt;latest version of Kotatsu&lt;/a&gt;&lt;br&gt;3. If it is available, send an error report to the developers.</string>
     <string name="history_shortcuts">Show recent manga shortcuts</string>
     <string name="history_shortcuts_summary">Make recent manga available by long pressing on application icon</string>
-    <string name="reader_control_ltr_summary">Tapping on the right edge, or pressing the right key, always switches to the next page</string>
+    <string name="reader_control_ltr_summary">Tapping on the right edge, or pressing the right key, always switches to the next page.</string>
     <string name="reader_control_ltr">Ergonomic reader control</string>
     <string name="color_correction">Color correction</string>
     <string name="brightness">Brightness</string>