diff --git a/Setup/InstallData.php b/Setup/InstallData.php
index cd47451..6b32da4 100644
--- a/Setup/InstallData.php
+++ b/Setup/InstallData.php
@@ -243,7 +243,7 @@ protected function setSystemConfiguration()
                 ],
                 [
                     'reference_unit' => 'mm',
-                    'conversion_rate' => '0.001'
+                    'conversion_rate' => '0.1'
                 ]
             ],
             'mm' => [