diff --git a/src/rail_cmd.cpp b/src/rail_cmd.cpp
index 662dc9a67b..51c8addaf0 100644
--- a/src/rail_cmd.cpp
+++ b/src/rail_cmd.cpp
@@ -39,6 +39,8 @@
 #include "table/railtypes.h"
 #include "table/track_land.h"
 
+#include <vector>
+
 #include "safeguards.h"
 
 /** Helper type for lists/vectors of trains */