diff --git a/src/emqx_boot.erl b/src/emqx_boot.erl
index da30d2107..aa89449cc 100644
--- a/src/emqx_boot.erl
+++ b/src/emqx_boot.erl
@@ -20,7 +20,7 @@
 
 -define(BOOT_MODULES, [router, broker, listeners]).
 
--spec(is_enabled(all|list(router|broker|listener)) -> boolean()).
+-spec(is_enabled(all|list(router|broker|listeners)) -> boolean()).
 is_enabled(Mod) ->
     (BootMods = boot_modules()) =:= all orelse lists:member(Mod, BootMods).