diff --git a/emper/Worker.hpp b/emper/Worker.hpp
index 0cec08e3b279bf309bf1985a455ac91d553a93af..7527d8c3eda142cd3505816f1d4b39d20d74c7e5 100644
--- a/emper/Worker.hpp
+++ b/emper/Worker.hpp
@@ -2,6 +2,7 @@
 // Copyright © 2020 Florian Schmaus
 #pragma once
 
+#include "Common.hpp"
 #include "emper-common.h"
 
 class Runtime;
@@ -12,7 +13,7 @@ class Worker {
 
 	const workerid_t workerId;
 
-	unsigned int seed;
+	ALIGN_TO_CACHE_LINE unsigned int seed;
 
 	Worker(workerid_t workerId, unsigned int seed) : workerId(workerId), seed(seed) {}