Index: openacs-4/packages/acs-templating/www/doc/demo/compile.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-templating/www/doc/demo/compile.tcl,v
diff -u -r1.1.1.1.30.4 -r1.1.1.1.30.5
--- openacs-4/packages/acs-templating/www/doc/demo/compile.tcl	26 May 2016 17:22:32 -0000	1.1.1.1.30.4
+++ openacs-4/packages/acs-templating/www/doc/demo/compile.tcl	28 May 2016 09:51:22 -0000	1.1.1.1.30.5
@@ -11,7 +11,7 @@
          ad_complain "Only files within this directory may be shown."
       }
        set dir [file dirname [ad_conn file]]
-       if { ![file readable $dir/$file] } {
+       if {![file readable $dir/$file] || [file isdirectory $dir/$file]} {
            ad_complain "requested file is not readable."
       }
    }