Index: openacs-4/packages/imsld/tcl/imsld-condition-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/imsld/tcl/imsld-condition-procs.tcl,v
diff -u -r1.32 -r1.33
--- openacs-4/packages/imsld/tcl/imsld-condition-procs.tcl	4 Apr 2018 20:29:49 -0000	1.32
+++ openacs-4/packages/imsld/tcl/imsld-condition-procs.tcl	17 Apr 2018 14:47:02 -0000	1.33
@@ -584,7 +584,7 @@
                 set returnvalue [expr { [string eq 0 $count] ? 0 : $returnvalue }]
                 return $returnvalue
             }
-            {substract} {
+            {subtract} {
                 set childs [$expressionNode childNodes]
                 return [expr {[imsld::expression::eval -run_id $run_id -expression [lindex $childs 0]] - [imsld::expression::eval -run_id $run_id  -user_id $user_id -expression [lindex $childs 1]]}]
             }