diff --git a/MsBinaryFile/XlsFile/Format/Logic/Biff_unions/ATTACHEDLABEL_bu.cpp b/MsBinaryFile/XlsFile/Format/Logic/Biff_unions/ATTACHEDLABEL_bu.cpp
index e2448fb871..7a48e52d8e 100644
--- a/MsBinaryFile/XlsFile/Format/Logic/Biff_unions/ATTACHEDLABEL_bu.cpp
+++ b/MsBinaryFile/XlsFile/Format/Logic/Biff_unions/ATTACHEDLABEL_bu.cpp
@@ -393,12 +393,12 @@ int ATTACHEDLABEL::serialize(std::wostream & _stream, bool isPosition)
 
 int ATTACHEDLABEL::serialize_rPr (std::wostream & _stream, int iFnt, bool rtl, bool defRPr)
 {
-	if (!pGlobalWorkbookInfoPtr)			return 0;
+	if (!pGlobalWorkbookInfoPtr) return 0;
 
 	int sz = pGlobalWorkbookInfoPtr->m_arFonts.size();
-	if (iFnt - 1 > sz || iFnt < 1) return 0;
+	if (iFnt > sz  || iFnt < 1) return 0;
 
-	Font * font = dynamic_cast<Font*>(pGlobalWorkbookInfoPtr->m_arFonts[iFnt -1].get());
+	Font * font = dynamic_cast<Font*>(pGlobalWorkbookInfoPtr->m_arFonts[iFnt - 1].get());
 
 	Text * text_props = dynamic_cast<Text*>(m_TextProperties.get());