--- a/clear_cmd.c	Wed Oct 11 18:57:02 2006 +0000
+++ b/clear_cmd.c	Wed Oct 11 21:20:53 2006 +0000
@@ -682,7 +682,7 @@
 
 			if (GetIndustryIndexOfField(tile) == INVALID_INDUSTRY && GetFieldType(tile) >= 7) {
 				/* This farmfield is no longer farmfield, so make it grass again */
-				MakeClear(tile, CLEAR_GRASS, 0);
+				MakeClear(tile, CLEAR_GRASS, 2);
 			} else {
 				field_type = GetFieldType(tile);
 				field_type = (field_type < 8) ? field_type + 1 : 0;