Index: openacs-4/packages/acs-templating/tcl/parse-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-templating/tcl/parse-procs.tcl,v
diff -u -r1.56 -r1.57
--- openacs-4/packages/acs-templating/tcl/parse-procs.tcl	7 Aug 2017 23:48:02 -0000	1.56
+++ openacs-4/packages/acs-templating/tcl/parse-procs.tcl	1 Oct 2017 12:16:05 -0000	1.57
@@ -185,7 +185,7 @@
     # Always pop off the parse_level no matter how we exit
     template::util::lpop ::template::parse_level
 
-    switch $return_code {
+    switch -- $return_code {
         0 - 2 {
             # CODE executed without a non-local exit -- return what it
             # evaluated to.