--- freeciv/common/unittype.c.orig	Fri Aug 17 17:48:22 2001
+++ freeciv/common/unittype.c	Fri Aug 17 17:49:33 2001
@@ -472,7 +472,8 @@
   
   if(!first_init) {
     for(i=0; i<L_LAST; i++) {
-      free(with_role[i]);
+      if(with_role[i])
+        free(with_role[i]);
     }
   }
   for(i=0; i<L_LAST; i++) {