diff -up jwhois-4.0/src/init.c.orig jwhois-4.0/src/init.c
--- jwhois-4.0/src/init.c.orig	2007-06-26 08:59:17.000000000 +0200
+++ jwhois-4.0/src/init.c	2016-08-08 12:39:53.020192525 +0200
@@ -281,7 +281,10 @@ parse_args(int *argc, char ***argv)
 	config = SYSCONFDIR "/jwhois.conf";
     }
   if (in)
-    jconfig_parse_file(in);
+    {
+      jconfig_parse_file(in);
+      fclose(in);
+    }
 
   if (verbose>1)
     {