diff --git a/tests/support/util.tcl b/tests/support/util.tcl
index b3c3abca..181c865f 100644
--- a/tests/support/util.tcl
+++ b/tests/support/util.tcl
@@ -376,6 +376,8 @@ proc stop_write_load {handle} {
     catch {exec /bin/kill -9 $handle}
 }
 
+proc K { x y } { set x } 
+
 # Shuffle a list. From Tcl wiki. Originally from Steve Cohen that improved
 # other versions. Code should be under public domain.
 proc lshuffle {list} {