diff --git a/Systems/fadec-iae.xml b/Systems/fadec-iae.xml
index 80f1bde9..f9cd1d06 100644
--- a/Systems/fadec-iae.xml
+++ b/Systems/fadec-iae.xml
@@ -131,7 +131,7 @@
             <expression>
                 <table>
                     <property>/position/altitude-ft</property> 
-                    <entry><ind>    0</ind><dep>0.989</dep></entry>
+                    <entry><ind>    0</ind><dep>0.988</dep></entry>
                     <entry><ind>13000</ind><dep>0.975</dep></entry>
                     <entry><ind>42000</ind><dep>0.966</dep></entry>
                 </table>