diff --git a/src/server.cpp b/src/server.cpp
index aba105083..20a14fca3 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -28,6 +28,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "voxel.h"
 #include "materials.h"
 #include "mineral.h"
+#include "config.h"
 
 #define BLOCK_EMERGE_FLAG_FROMDISK (1<<0)