1 files changed, 1 insertions, 1 deletions
diff --git a/tests/mathop.test b/tests/mathop.test
index 958a56f..703a572 100644
--- a/tests/mathop.test
+++ b/tests/mathop.test
@@ -10,7 +10,7 @@
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
-if {[lsearch [namespace children] ::tcltest] == -1} {
+if {"::tcltest" ni [namespace children]} {
     package require tcltest 2.1
     namespace import -force ::tcltest::*
 }