diff --git a/src/storm-pars/analysis/Order.cpp b/src/storm-pars/analysis/Order.cpp
index 350cffa29..150d2711d 100644
--- a/src/storm-pars/analysis/Order.cpp
+++ b/src/storm-pars/analysis/Order.cpp
@@ -1,5 +1,7 @@
 #include <iostream>
 #include <fstream>
+#include <algorithm>
+
 #include "Order.h"
 
 namespace storm {