diff --git a/rendertime/lang/C/messages.po b/rendertime/lang/C/messages.po
index ab35dd16..7d482ca1 100644
--- a/rendertime/lang/C/messages.po
+++ b/rendertime/lang/C/messages.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2021-12-12 05:56+0000\n"
+"POT-Creation-Date: 2021-12-12 22:09+0000\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -25,10 +25,20 @@ msgstr ""
 msgid "Show callstack"
 msgstr ""
 
+#: rendertime.php:31
+msgid ""
+"Show detailed performance measures in the callstack. When deactivated, only "
+"the summary will be displayed."
+msgstr ""
+
 #: rendertime.php:32
 msgid "Minimal time"
 msgstr ""
 
+#: rendertime.php:32
+msgid "Minimal time that an activity needs to be listed in the callstack."
+msgstr ""
+
 #: rendertime.php:57
 #, php-format
 msgid ""