diff --git a/DATabase/DATabase.cs b/DATabase/DATabase.cs
index 198908e8..1272bbe3 100644
--- a/DATabase/DATabase.cs
+++ b/DATabase/DATabase.cs
@@ -300,7 +300,7 @@ namespace SabreTools
 			}
 
 			// If more than one switch is enabled or help is set, show the help screen
-			if (help || !(add ^ convertMiss ^ convertCMP ^ convertXml ^ extsplit ^ generate ^ genall ^ import ^ listsrc ^ listsys ^ merge ^ rem ^ trim))
+			if (help || !(add ^ convertMiss ^ convertCMP ^ convertXml ^ extsplit ^ generate ^ genall ^ import ^ listsrc ^ listsys ^ (merge || diff) ^ rem ^ trim))
 			{
 				Build.Help();
 				logger.Close();
@@ -308,7 +308,7 @@ namespace SabreTools
 			}
 
 			// If a switch that requires a filename is set and no file is, show the help screen
-			if (inputs.Count == 0 && (convertMiss || convertCMP || convertXml || extsplit || import || merge || trim))
+			if (inputs.Count == 0 && (convertMiss || convertCMP || convertXml || extsplit || import || (merge || diff) || trim))
 			{
 				Build.Help();
 				logger.Close();