diff -Naur gnokii-0.5.2-orig/common/misc.c gnokii-0.5.2/common/misc.c
--- gnokii-0.5.2-orig/common/misc.c	2003-06-13 12:02:01 +0300
+++ gnokii-0.5.2/common/misc.c	2003-07-08 16:43:04 +0300
@@ -164,7 +164,7 @@
 #if defined (__svr4__)
 #  define lock_path "/var/run/LCK.."
 #else
-#  define lock_path "/var/lock/LCK.."
+#  define lock_path "/var/lock/serial/LCK.."
 #endif
 
 /* Lock the device. Return allocated string with a lock name */