diff --git a/config/actors/sps.yaml b/config/actors/sps.yaml
index 3ce5483..009e35e 100644
--- a/config/actors/sps.yaml
+++ b/config/actors/sps.yaml
@@ -13,7 +13,7 @@ sps:
   doUpdateScienceFiberStatus: True # set fiberStatus to UNILLUMINATED for unilluminated fibers for science fibers
 
   S:
-    spsModules: [ sm1, sm2, sm3, sm4 ]
+    spsModules: [ sm2, sm3, sm4 ]
 
     sm1:
       bcu: sci