diff --git a/Systems/a320-aerodynamics.xml b/Systems/a320-aerodynamics.xml
index ba86df31..1cf5b9e5 100644
--- a/Systems/a320-aerodynamics.xml
+++ b/Systems/a320-aerodynamics.xml
@@ -170,7 +170,7 @@
 				<property>aero/qbar-psf</property>
 				<property>metrics/Sw-sqft</property>
 				<property>aero/cl-squared</property>
-				<value>0.0377</value>
+				<value>0.0397</value>
 			</product>
 		</function>