diff --git a/src/catch2/internal/catch_sharding.hpp b/src/catch2/internal/catch_sharding.hpp
index d0e4cfa1..22561f4b 100644
--- a/src/catch2/internal/catch_sharding.hpp
+++ b/src/catch2/internal/catch_sharding.hpp
@@ -8,8 +8,7 @@
 #ifndef CATCH_SHARDING_HPP_INCLUDED
 #define CATCH_SHARDING_HPP_INCLUDED
 
-#include <catch2/catch_session.hpp>
-
+#include <cassert>
 #include <cmath>
 #include <algorithm>