diff --git a/common/common.h b/common/common.h
index c6f476ec3..f84948330 100644
--- a/common/common.h
+++ b/common/common.h
@@ -17,6 +17,7 @@
 #include <set>
 #include <unordered_map>
 #include <tuple>
+#include <functional>
 
 #ifdef _WIN32
 #define DIRECTORY_SEPARATOR '\\'