diff --git a/src/plugins/irc/irc-command.c b/src/plugins/irc/irc-command.c
index c09d77725..bb40e000d 100644
--- a/src/plugins/irc/irc-command.c
+++ b/src/plugins/irc/irc-command.c
@@ -1221,7 +1221,7 @@ IRC_COMMAND_CALLBACK(cap)
         if ((weechat_strcasecmp (argv[1], "ls") == 0) && !argv_eol[2])
         {
             irc_server_sendf (ptr_server, IRC_SERVER_SEND_OUTQ_PRIO_HIGH, NULL,
-                              "CAP LS 302");
+                              "CAP LS " IRC_SERVER_VERSION_CAP);
         }
         else
         {
@@ -1241,7 +1241,7 @@ IRC_COMMAND_CALLBACK(cap)
          * enabled
          */
         irc_server_sendf (ptr_server, IRC_SERVER_SEND_OUTQ_PRIO_HIGH, NULL,
-                          "CAP LS 302");
+                          "CAP LS " IRC_SERVER_VERSION_CAP);
         irc_server_sendf (ptr_server, IRC_SERVER_SEND_OUTQ_PRIO_HIGH, NULL,
                           "CAP LIST");
     }
diff --git a/src/plugins/irc/irc-server.c b/src/plugins/irc/irc-server.c
index b7783e0e3..dd785c29a 100644
--- a/src/plugins/irc/irc-server.c
+++ b/src/plugins/irc/irc-server.c
@@ -3544,7 +3544,7 @@ irc_server_login (struct t_irc_server *server)
 
     if (irc_server_sasl_enabled (server) || (capabilities && capabilities[0]))
     {
-        irc_server_sendf (server, 0, NULL, "CAP LS 302");
+        irc_server_sendf (server, 0, NULL, "CAP LS " IRC_SERVER_VERSION_CAP);
     }
 
     username2 = (username && username[0]) ?
diff --git a/src/plugins/irc/irc-server.h b/src/plugins/irc/irc-server.h
index df2c78718..74987e675 100644
--- a/src/plugins/irc/irc-server.h
+++ b/src/plugins/irc/irc-server.h
@@ -121,6 +121,9 @@ enum t_irc_server_option
 #define IRC_SERVER_SEND_OUTQ_PRIO_LOW    2
 #define IRC_SERVER_SEND_RETURN_HASHTABLE 4
 
+/* version strings */
+#define IRC_SERVER_VERSION_CAP "302"
+
 /* casemapping (string comparisons for nicks/channels) */
 enum t_irc_server_casemapping
 {