diff --git a/test/testdata/flex.xml b/test/testdata/flex.xml
index bebf0163..5fdc6ca0 100644
--- a/test/testdata/flex.xml
+++ b/test/testdata/flex.xml
@@ -28,15 +28,16 @@
       <inertial pos="0 0 0" mass="1" diaginertia="0.01 0.01 0.01"/>
       <freejoint/>
 
-      <flexcomp name="f1" type="ellipsoid" rgba=".8 .2 .2 1" radius="0.001" count="5 5 5"
+      <flexcomp name="f1" type="ellipsoid" rgba=".8 .2 .2 1" radius="0.001" count="4 4 4"
                 spacing=".025 .025 .025" dim="3" mass="1">
         <edge equality="true" solref="0.15 0.2" stiffness="0" damping="0"/>
       </flexcomp>
     </body>
 
-    <flexcomp name="f2" type="grid" rgba="1 1 0 1" radius="0.003" dim="2" pos="0 0 .6"
-              zaxis="1 1 1" count="7 7 1" mass="1" spacing="0.02 0.03 0.04" material="grid">
+    <flexcomp name="f2" type="grid" rgba="1 1 0 1" radius="0.003" dim="2" pos="0 0 .1"
+              zaxis="0 0 1" count="6 6 1" mass="1" spacing="0.02 0.03 0.04" material="grid">
       <edge equality="true" solref="0.15 0.2" stiffness="0" damping="0"/>
+      <pin id="0"/>
     </flexcomp>
 
     <flexcomp name="f3" type="grid" rgba=".6 .5 .1 1" radius="0.003" dim="3" pos="0 0 .3"