diff --git a/Aircraft/b52-yasim-set.xml b/Aircraft/b52-yasim-set.xml
index 07754f043..a7ead16c5 100755
--- a/Aircraft/b52-yasim-set.xml
+++ b/Aircraft/b52-yasim-set.xml
@@ -60,7 +60,9 @@ B52-H set file.
  </sim>
 
  <controls>
-  <elevator-trim type="float">-0.14</elevator-trim>
+  <flight>
+   <elevator-trim type="float">-0.14</elevator-trim>
+  </flight>
  </controls>
 
  <autopilot>
diff --git a/Aircraft/c310-jsbsim-base.xml b/Aircraft/c310-jsbsim-base.xml
index 050a4f9d9..db9ba9635 100644
--- a/Aircraft/c310-jsbsim-base.xml
+++ b/Aircraft/c310-jsbsim-base.xml
@@ -15,7 +15,9 @@ Common configuration for all JSBSim C310 models.
  </sim>
 
  <controls>
-  <aileron-trim>-0.026</aileron-trim>
+  <flight>
+   <aileron-trim>-0.026</aileron-trim>
+  </flight>
  </controls>
 
 </PropertyList>