diff --git a/po/telegram-purple.pot b/po/telegram-purple.pot
index 2f5860a..5d729a4 100644
--- a/po/telegram-purple.pot
+++ b/po/telegram-purple.pot
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2015-10-12 13:27+0200\n"
+"POT-Creation-Date: 2015-10-12 18:48+0200\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"
@@ -291,19 +291,23 @@ msgid "%2$s updated to layer %1$d."
 msgstr ""
 
 #: ../tgp-msg.c:140
-msgid "%2$s requests rekey #1$%016llx."
+#, c-format
+msgid "%2$s requests rekey #%1$016llx."
 msgstr ""
 
 #: ../tgp-msg.c:143
-msgid "%2$s accepts rekey #1$%016llx."
+#, c-format
+msgid "%2$s accepts rekey #%1$016llx."
 msgstr ""
 
 #: ../tgp-msg.c:146
-msgid "%2$s commits rekey #1$%016llx."
+#, c-format
+msgid "%2$s commits rekey #%1$016llx."
 msgstr ""
 
 #: ../tgp-msg.c:149
-msgid "%2$s aborts rekey #1$%016llx."
+#, c-format
+msgid "%2$s aborts rekey #%1$016llx."
 msgstr ""
 
 #: ../tgp-msg.c:173
@@ -477,7 +481,7 @@ msgstr ""
 msgid "last month"
 msgstr ""
 
-#. This is preceded by a colon.
+#. This is preceded by a colon. It refers to a point on time.
 #: ../tgp-utils.c:72
 msgid "unknown"
 msgstr ""
diff --git a/tgp-msg.c b/tgp-msg.c
index 05c4d8d..03ffdbc 100644
--- a/tgp-msg.c
+++ b/tgp-msg.c
@@ -137,16 +137,16 @@ static char *format_service_msg (struct tgl_state *TLS, struct tgl_message *M) {
       txt = g_strdup_printf (_("%2$s updated to layer %1$d."), M->action.layer, txt_user);
       break;
     case tgl_message_action_request_key:
-      txt = g_strdup_printf (_("%2$s requests rekey #1$%016llx."), M->action.exchange_id, txt_user);
+      txt = g_strdup_printf (_("%2$s requests rekey #%1$016llx."), M->action.exchange_id, txt_user);
       break;
     case tgl_message_action_accept_key:
-      txt = g_strdup_printf (_("%2$s accepts rekey #1$%016llx."), M->action.exchange_id, txt_user);
+      txt = g_strdup_printf (_("%2$s accepts rekey #%1$016llx."), M->action.exchange_id, txt_user);
       break;
     case tgl_message_action_commit_key:
-      txt = g_strdup_printf (_("%2$s commits rekey #1$%016llx."), M->action.exchange_id, txt_user);
+      txt = g_strdup_printf (_("%2$s commits rekey #%1$016llx."), M->action.exchange_id, txt_user);
       break;
     case tgl_message_action_abort_key:
-      txt = g_strdup_printf (_("%2$s aborts rekey #1$%016llx."), M->action.exchange_id, txt_user);
+      txt = g_strdup_printf (_("%2$s aborts rekey #%1$016llx."), M->action.exchange_id, txt_user);
       break;
     default:
       break;
diff --git a/tgp-utils.c b/tgp-utils.c
index d867ce0..4667795 100644
--- a/tgp-utils.c
+++ b/tgp-utils.c
@@ -68,7 +68,7 @@ char *tgp_format_user_status (struct tgl_user_status *status) {
       when = g_strdup_printf (_("last month"));
       break;
     default:
-      /* This is preceded by a colon. */
+      /* This is preceded by a colon. It refers to a point on time. */
       when = g_strdup (_("unknown"));
       break;
   }