diff --git a/src/map.cpp b/src/map.cpp
index 8d79ae36..c258d157 100644
--- a/src/map.cpp
+++ b/src/map.cpp
@@ -27,6 +27,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "porting.h"
 #include "mineral.h"
 #include "noise.h"
+#include "serverobject.h"
 
 /*
 	Map