diff --git a/test/udev-test.pl b/test/udev-test.pl
index 18f3a7719..743572034 100755
--- a/test/udev-test.pl
+++ b/test/udev-test.pl
@@ -262,7 +262,7 @@ KERNEL=="ttyACM0", SYMLINK+="modem"
 EOF
         },
         {
-                desc            => "sustitution of sysfs value (%s{file})",
+                desc            => "substitution of sysfs value (%s{file})",
                 devpath         => "/devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda",
                 exp_name        => "disk-ATA-sda" ,
                 rules           => <<EOF