Index: openacs-4/packages/acs-tcl/tcl/security-init.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-tcl/tcl/security-init.tcl,v
diff -u -r1.3 -r1.4
--- openacs-4/packages/acs-tcl/tcl/security-init.tcl	1 Nov 2003 08:45:37 -0000	1.3
+++ openacs-4/packages/acs-tcl/tcl/security-init.tcl	10 Jan 2007 21:22:12 -0000	1.4
@@ -32,7 +32,7 @@
 "
 
 proc sec_session_renew {} "
-    return \"[expr [sec_session_timeout] - [ad_parameter -package_id [ad_acs_kernel_id] SessionRenew security 300]]\"
+    return \"[expr {[sec_session_timeout] - [ad_parameter -package_id [ad_acs_kernel_id] SessionRenew security 300]}]\"
 "
 
 proc sec_login_timeout {} "