--- a/src/openttd.cpp	Wed Mar 21 15:12:30 2007 +0000
+++ b/src/openttd.cpp	Thu Mar 22 11:11:36 2007 +0000
@@ -1908,6 +1908,11 @@
 		}
 	}
 
+	if (CheckSavegameVersion(54)) {
+		Town *t;
+		FOR_ALL_TOWNS(t) t->SetActivity(1);
+	}
+
 	return true;
 }