Index: openacs-4/packages/xowiki/tcl/package-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/tcl/package-procs.tcl,v
diff -u -r1.266 -r1.267
--- openacs-4/packages/xowiki/tcl/package-procs.tcl	28 Feb 2013 17:13:38 -0000	1.266
+++ openacs-4/packages/xowiki/tcl/package-procs.tcl	30 Mar 2013 21:58:10 -0000	1.267
@@ -1378,8 +1378,8 @@
 	set tag $stripped_url
 	set summary [::xo::cc query_parameter summary 0]
 	set popular [::xo::cc query_parameter popular 0]
-	if {[string is boolean -strict $summary]} {error "summary must be boolean"}
-	if {[string is boolean -strict $popular]} {error "popular must be boolean"}
+	if {![string is boolean -strict $summary]} {error "summary must be boolean"}
+	if {![string is boolean -strict $popular]} {error "popular must be boolean"}
 	set tag_kind [expr {$popular ? "ptag" :"tag"}]
 	set weblog_page [my get_parameter weblog_page]
 	my get_lang_and_name -default_lang $default_lang -name $weblog_page (lang) (stripped_name)