--- tkabber-1.1.2/login.tcl~	2015-05-10 21:19:50.000000000 +0200
+++ tkabber-1.1.2/login.tcl	2016-08-14 16:12:23.307296050 +0200
@@ -110,7 +110,7 @@ if {$use_tls} {
     custom::defvar loginconf(sslcertfile) "" \
 	[::msgcat::mc "SSL certificate file (optional)."] \
 	-group Login -type file
-    custom::defvar loginconf(sslcacertstore) "" \
+    custom::defvar loginconf(sslcacertstore) "/etc/certs/ca-certificates.crt" \
 	[::msgcat::mc "SSL certification authority file or directory (optional)."] \
 	-group Login -type file
     custom::defvar loginconf(sslkeyfile) "" \