diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index 9363a5b27339..cb16d2aac51c 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -1543,7 +1543,7 @@ sub create_pty {
     my $TIOCGPTN = 0x80045430;
 
     sysopen($ptm, "/dev/ptmx", O_RDWR | O_NONBLOCK) or
-	dodie "Cant open /dev/ptmx";
+	dodie "Can't open /dev/ptmx";
 
     # unlockpt()
     $tmp = pack("i", 0);