diff --git a/src/game/GridDefines.h b/src/game/GridDefines.h
index 6565e0e0f..6553bebf3 100644
--- a/src/game/GridDefines.h
+++ b/src/game/GridDefines.h
@@ -44,7 +44,7 @@ class Player;
 #define MAX_NUMBER_OF_CELLS     4
 #define SIZE_OF_GRID_CELL       (SIZE_OF_GRIDS/MAX_NUMBER_OF_CELLS)
 
-#define CENTER_GRID_CELL_ID     128
+#define CENTER_GRID_CELL_ID     (MAX_NUMBER_OF_CELLS*MAX_NUMBER_OF_GRIDS/2)
 #define CENTER_GRID_CELL_OFFSET (SIZE_OF_GRID_CELL/2)
 
 #define TOTAL_NUMBER_OF_CELLS_PER_MAP    (MAX_NUMBER_OF_GRIDS*MAX_NUMBER_OF_CELLS)
diff --git a/src/shared/revision_nr.h b/src/shared/revision_nr.h
index c0a4b83ec..ec29e2b7b 100644
--- a/src/shared/revision_nr.h
+++ b/src/shared/revision_nr.h
@@ -1,4 +1,4 @@
 #ifndef __REVISION_NR_H__
 #define __REVISION_NR_H__
- #define REVISION_NR "8148"
+ #define REVISION_NR "8149"
 #endif // __REVISION_NR_H__