diff --git a/specifications/build.xml b/specifications/build.xml
index 6100e32adbbb4fdc0be950ac1250454a71be799f..307c12d75966857cb1ecc7168d0eed5494623fe7 100644
--- a/specifications/build.xml
+++ b/specifications/build.xml
@@ -25,10 +25,14 @@
 	<!-- =============================================== -->
 		
 	<target name="download.IeeeDisStandards.rename" description="rename saved DIS specification files to readable filenames">
-		<move file="6387564.pdf" tofile="IEEE1278.1-2012.DistributedInteractiveSimulation.ApplicationProtocols.6387564.pdf"   verbose="true" quiet="true" failonerror="false"/>
-		<move file="7459689.pdf" tofile="IEEE1278.2-2015.DistributedInteractiveSimulation.CommunicationsServices.7459689.pdf" verbose="true" quiet="true" failonerror="false"/>
-		<move file= "587529.pdf" tofile="IEEE1278.3-2015.DistributedInteractiveSimulation.CommunicationsServices.587529.pdf"  verbose="true" quiet="true" failonerror="false"/>
-		<move file="6595010.pdf" tofile="IEEE1278.4-2013.DistributedInteractiveSimulation.VV+A.8685803.pdf"                   verbose="true" quiet="true" failonerror="false"/>
+		<!-- part 1 6387564.pdf -->
+        <move file="12781-2012.pdf" tofile="IEEE1278.1-2012.DistributedInteractiveSimulation.ApplicationProtocols.12781-2012.pdf"   verbose="true" quiet="true" failonerror="false"/>
+		<!-- part 2 7459689.pdf -->
+        <move file="12782-2015.pdf" tofile="IEEE1278.2-2015.DistributedInteractiveSimulation.CommunicationsServices.12782-2015.pdf" verbose="true" quiet="true" failonerror="false"/>
+		<!-- part 3 00587529.pdf -->
+        <move file= "00587529.pdf" tofile="IEEE1278.3-2015.DistributedInteractiveSimulation.CommunicationsServices.00587529.pdf"  verbose="true" quiet="true" failonerror="false"/>
+		<!-- part 4 6595010.pdf -->
+        <move file="12784-1997.pdf" tofile="IEEE1278.4-2013.DistributedInteractiveSimulation.VV+A.12784-1997.pdf"                   verbose="true" quiet="true" failonerror="false"/>
 	
 		<echo message="*.pdf directory contents:"/>
 		<!-- https://stackoverflow.com/questions/10528032/listing-all-files-and-subdirectories-using-ant -->
@@ -122,7 +126,7 @@
         <echo message="as  ${DIS.1.rename}"/>
 		<get     src="${ieeeBaseLinkUrl}${DIS.1.document}"
                 dest="${DIS.1.rename}" verbose="true"/>
-	
+        
 		<!-- ======================== -->
 		<property name="DIS.2.document" value="7459689"/>
 		<property name="DIS.2.rename"   value="IEEE1278.2-2015.DistributedInteractiveSimulation.CommunicationsServices.${DIS.2.document}.pdf"/>