diff --git a/SiD/compact/SiD_o2_v03/HCalBarrel_brass_v03.xml b/SiD/compact/SiD_o2_v03/HCalBarrel_brass_v03.xml
index aeea7751f..6fe2f67d4 100644
--- a/SiD/compact/SiD_o2_v03/HCalBarrel_brass_v03.xml
+++ b/SiD/compact/SiD_o2_v03/HCalBarrel_brass_v03.xml
@@ -1,11 +1,11 @@
 <lccdd>
 
-<!-------------------------------------------------------------------------------------------------
+<!--
     AHCal Barrel implementation of the layout from 70th SiD Optimization Meeting presentation 
     from Ross Gordon McCoy (ross.mccoy@mavs.uta.edu) - June 30, 2016, updated Nov 20, 2016
     Brass absorber version of o2_v03 included here for convenience - protopop@cern.ch - Dec 6, 2017
     See https://www.evernote.com/l/AJ2HhEFs29NFZKbSV49f8xhNVTv-RsNqejc
-  ------------------------------------------------------------------------------------------------->
+  -->
 
 <readouts>
   <readout name="HCalBarrelHits">
diff --git a/SiD/compact/SiD_o2_v03/HCalBarrel_o2_v03.xml b/SiD/compact/SiD_o2_v03/HCalBarrel_o2_v03.xml
index 80360824e..1ae8188e7 100644
--- a/SiD/compact/SiD_o2_v03/HCalBarrel_o2_v03.xml
+++ b/SiD/compact/SiD_o2_v03/HCalBarrel_o2_v03.xml
@@ -1,11 +1,11 @@
 <lccdd>
 
-<!-----------------------------------------------------------------------------------------------
+<!--
    AHCal Barrel implementation of the layout from 70th SiD Optimization Meeting presentation 
    from Ross - June 30, 2016
    Updated by Ross on Nov 20, 2016
    o2_v03 by protopop@cern.ch - Oct 18, 2017
-  ------------------------------------------------------------------------------------------------->
+  -->
 
 <readouts>
   <readout name="HCalBarrelHits">
diff --git a/SiD/compact/SiD_o2_v03/HCalEndcap_brass_v03.xml b/SiD/compact/SiD_o2_v03/HCalEndcap_brass_v03.xml
index 5b98e6a4c..fc76532b6 100644
--- a/SiD/compact/SiD_o2_v03/HCalEndcap_brass_v03.xml
+++ b/SiD/compact/SiD_o2_v03/HCalEndcap_brass_v03.xml
@@ -1,10 +1,10 @@
 <lccdd>
 	
-<!-------------------------------------------------------------------------------------------------
+<!--
     AHCal EndCap implementation updated by Ross, Nov 20, 2016
     Brass absorber version of o2_v03 included here for convenience - protopop@cern.ch - Dec 6, 2017
     See https://www.evernote.com/l/AJ2HhEFs29NFZKbSV49f8xhNVTv-RsNqejc
---------------------------------------------------------------------------------------------------->
+-->
 	
 <readouts>
     <readout name="HCalEndcapHits">
diff --git a/SiD/compact/SiD_o2_v03/HCalEndcap_o2_v03.xml b/SiD/compact/SiD_o2_v03/HCalEndcap_o2_v03.xml
index 4447b2dc3..bd0140512 100644
--- a/SiD/compact/SiD_o2_v03/HCalEndcap_o2_v03.xml
+++ b/SiD/compact/SiD_o2_v03/HCalEndcap_o2_v03.xml
@@ -1,9 +1,9 @@
 <lccdd>
 	
-<!-----------------------------------------------------------------------------------------------
+<!--
      AHCal EndCap implementation updated by Ross, Nov 20, 2016
      o2_v03 by protopop@cern.ch - Oct 18, 2017
-------------------------------------------------------------------------------------------------->
+-->
 	
 <readouts>
     <readout name="HCalEndcapHits">
diff --git a/SiD/compact/SiD_o2_v03/HCalRing_o2_v03.xml b/SiD/compact/SiD_o2_v03/HCalRing_o2_v03.xml
index ac5837faf..308a2139f 100644
--- a/SiD/compact/SiD_o2_v03/HCalRing_o2_v03.xml
+++ b/SiD/compact/SiD_o2_v03/HCalRing_o2_v03.xml
@@ -1,10 +1,10 @@
 <lccdd>
 	
-<!-----------------------------------------------------------------------------------------------
+<!--
    Added by Aidan, originally included in the HCalEndcap XML
    o2_v03 update by protopop@cern.ch - Oct 18, 2017
    Question: is this still nedded?
-------------------------------------------------------------------------------------------------->
+-->
 
 <define>
         <constant name="HCalRing_rmin" value="HCalEndcap_rmin" />	
diff --git a/SiD/compact/SiD_o2_v03/MuonBarrel_o2_v03.xml b/SiD/compact/SiD_o2_v03/MuonBarrel_o2_v03.xml
index d11b1d32e..460cf389c 100644
--- a/SiD/compact/SiD_o2_v03/MuonBarrel_o2_v03.xml
+++ b/SiD/compact/SiD_o2_v03/MuonBarrel_o2_v03.xml
@@ -1,9 +1,9 @@
 <lccdd>
 
-<!-----------------------------------------------------------
+<!--
    This version uses Scintillators instead of Gas RPCs
    by protopop@cern.ch - Nov 20, 2017
-------------------------------------------------------------->
+-->
 
 <readouts>
     <readout name="MuonBarrelHits">
diff --git a/SiD/compact/SiD_o2_v03/MuonEndcap_o2_v03.xml b/SiD/compact/SiD_o2_v03/MuonEndcap_o2_v03.xml
index 59fddd932..d7cd4bcac 100644
--- a/SiD/compact/SiD_o2_v03/MuonEndcap_o2_v03.xml
+++ b/SiD/compact/SiD_o2_v03/MuonEndcap_o2_v03.xml
@@ -1,9 +1,9 @@
 <lccdd>
 
-<!-----------------------------------------------------------
+<!--
    This version uses Scintillators instead of Gas RPCs
    by protopop@cern.ch - Nov 20, 2017
-------------------------------------------------------------->
+-->
 
 <readouts>
     <readout name="MuonEndcapHits">
diff --git a/SiD/compact/SiD_o2_v03/SiTrackers_o2_v03.xml b/SiD/compact/SiD_o2_v03/SiTrackers_o2_v03.xml
index 883c89e21..6eee5ecc8 100644
--- a/SiD/compact/SiD_o2_v03/SiTrackers_o2_v03.xml
+++ b/SiD/compact/SiD_o2_v03/SiTrackers_o2_v03.xml
@@ -1,9 +1,9 @@
 <lccdd>
 
-<!------------------------------------------------------------------
+<!--
    This XML implements a common envelope for the barrel and encaps
    by protopop@cern.ch - Dec 4, 2017
--------------------------------------------------------------------->
+-->
 
 <define>
   <!-- Added some mm to the 2016 technical drawing values 
diff --git a/SiD/compact/SiD_o2_v03/SteppedMuon_o2_v03.xml b/SiD/compact/SiD_o2_v03/SteppedMuon_o2_v03.xml
index 7ed49dd82..b4cad3b92 100644
--- a/SiD/compact/SiD_o2_v03/SteppedMuon_o2_v03.xml
+++ b/SiD/compact/SiD_o2_v03/SteppedMuon_o2_v03.xml
@@ -1,9 +1,9 @@
 <lccdd>
 
-<!---------------------------------------------------------------
+<!--
    This version uses a common envelope for the barrel and encaps
    by protopop@cern.ch - Nov 30, 2017
------------------------------------------------------------------>
+-->
 
 <define>
   <constant name="SteppedMuon_symmetry" value="MuonBarrel_symmetry"/>