diff --git a/basis/xmode/modes/factor.xml b/basis/xmode/modes/factor.xml
index efd5d1a65c..67da12069b 100644
--- a/basis/xmode/modes/factor.xml
+++ b/basis/xmode/modes/factor.xml
@@ -43,7 +43,7 @@
 		</SPAN>
 		<SPAN TYPE="LITERAL1" NO_LINE_BREAK="TRUE"
 			DELEGATE="LITERAL">
-			<BEGIN>SBUF" </BEGIN>
+			<BEGIN>sbuf"</BEGIN>
 			<END>"</END>
 		</SPAN>
 		<SPAN TYPE="LITERAL1" NO_LINE_BREAK="TRUE"