diff --git a/OpenKeychain/src/main/res/values/strings.xml b/OpenKeychain/src/main/res/values/strings.xml
index 021b684a4..7525c199d 100644
--- a/OpenKeychain/src/main/res/values/strings.xml
+++ b/OpenKeychain/src/main/res/values/strings.xml
@@ -1708,13 +1708,13 @@
     <string name="title_edit_identities">"Edit Identities"</string>
     <string name="title_edit_subkeys">"Edit Subkeys"</string>
     <string name="btn_search_for_query">"Search for\n'%s'"</string>
-    <string name="cache_ttl_lock_screen">"until Screen Off"</string>
-    <string name="cache_ttl_ten_minutes">"for Ten Minutes"</string>
-    <string name="cache_ttl_thirty_minutes">"for Thirty Minutes"</string>
-    <string name="cache_ttl_one_hour">"for One Hour"</string>
-    <string name="cache_ttl_three_hours">"for Three Hours"</string>
-    <string name="cache_ttl_one_day">"for One Day"</string>
-    <string name="cache_ttl_three_days">"for Three Days"</string>
+    <string name="cache_ttl_lock_screen">"until screen off"</string>
+    <string name="cache_ttl_ten_minutes">"for ten minutes"</string>
+    <string name="cache_ttl_thirty_minutes">"for thirty minutes"</string>
+    <string name="cache_ttl_one_hour">"for one hour"</string>
+    <string name="cache_ttl_three_hours">"for three hours"</string>
+    <string name="cache_ttl_one_day">"for one day"</string>
+    <string name="cache_ttl_three_days">"for three days"</string>
     <string name="cache_ttl_forever">"forever"</string>
     <string name="settings_cache_select_three">"Pick up to three."</string>
     <string name="settings_cache_ttl_at_least_one">"At least one item must be selected!"</string>