diff --git a/spectrum/src/frontends/slack/SlackSession.h b/spectrum/src/frontends/slack/SlackSession.h
index 4332d2a9fcf8de025b3fdf09d9e63307fb0bbd40..073e6968804e403af3e8ade43cefac75256dcdc9 100644
--- a/spectrum/src/frontends/slack/SlackSession.h
+++ b/spectrum/src/frontends/slack/SlackSession.h
@@ -21,7 +21,6 @@
 #pragma once
 
 #include "transport/StorageBackend.h"
-#include "rapidjson/document.h"
 
 #include <string>
 #include <algorithm>