diff --git a/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/pid/tst.manypids.ksh b/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/pid/tst.manypids.ksh
index 869339bafb25..ce29cd406bde 100644
--- a/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/pid/tst.manypids.ksh
+++ b/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/pid/tst.manypids.ksh
@@ -66,5 +66,5 @@ $dtrace -s $tmpfile
 status=$?
 
 rm $tmpfile
-pkill sleep
+pkill -P $$ sleep
 exit $status