diff --git a/libsolidity/ast/AST.cpp b/libsolidity/ast/AST.cpp
index 566187191..f6b82f00c 100644
--- a/libsolidity/ast/AST.cpp
+++ b/libsolidity/ast/AST.cpp
@@ -38,6 +38,8 @@
 
 #include <functional>
 #include <utility>
+#include <numeric>
+#include <set>
 
 using namespace std;
 using namespace solidity;