1 files changed, 1 insertions, 1 deletions
diff --git a/lib.go b/lib.go
index 0ebe468..b6ea321 100644
--- a/lib.go
+++ b/lib.go
@@ -421,7 +421,7 @@ func (f *File) setIgnorableNameSpace(path string, index int, ns xml.Attr) {
 
 // addSheetNameSpace add XML attribute for worksheet.
 func (f *File) addSheetNameSpace(sheet string, ns xml.Attr) {
-	name, _ := f.sheetMap[trimSheetName(sheet)]
+	name := f.sheetMap[trimSheetName(sheet)]
 	f.addNameSpaces(name, ns)
 }