diff --git a/cime_config/config_component.xml b/cime_config/config_component.xml
index f18e1860..6aeca1a8 100644
--- a/cime_config/config_component.xml
+++ b/cime_config/config_component.xml
@@ -308,7 +308,7 @@
     <default_value>-lmusica -ljsonfortran</default_value>
     <values match="last" modifier="additive">
       <!-- Turn off for physics testbed -->
-      <value compset="_CAM%PHYSTEST"></value>
+      <!-- <value compset="_CAM%PHYSTEST"></value> -->
       <value grid="a%mpasa[0-9]+">-lmpas</value>
     </values>
     <group>build_component_cam</group>