diff --git a/src/plugins/irc/irc-server.h b/src/plugins/irc/irc-server.h
index 1d14957d8..10bb1094f 100644
--- a/src/plugins/irc/irc-server.h
+++ b/src/plugins/irc/irc-server.h
@@ -57,7 +57,7 @@ enum t_irc_server_option
     IRC_SERVER_OPTION_SASL_MECHANISM,/* mechanism for SASL authentication    */
     IRC_SERVER_OPTION_SASL_USERNAME, /* username for SASL authentication     */
     IRC_SERVER_OPTION_SASL_PASSWORD, /* password for SASL authentication     */
-    IRC_SERVER_OPTION_SASL_KEY,      /* key for ECDSA-NIST256P-CHALLENCE     */
+    IRC_SERVER_OPTION_SASL_KEY,      /* key for ECDSA-NIST256P-CHALLENGE     */
     IRC_SERVER_OPTION_SASL_TIMEOUT,  /* timeout for SASL authentication      */
     IRC_SERVER_OPTION_SASL_FAIL,     /* action on SASL fail                  */
     IRC_SERVER_OPTION_AUTOCONNECT,   /* autoconnect to server at startup     */