diff --git a/autoload/nerdcommenter.vim b/autoload/nerdcommenter.vim
index 45714a6..0b78497 100644
--- a/autoload/nerdcommenter.vim
+++ b/autoload/nerdcommenter.vim
@@ -1763,6 +1763,8 @@ function! s:UncommentLineNormal(line) abort
     endif
 
 
+    let indxLeft = s:FindDelimiterIndex(s:Left(), line)
+    let indxLeftAlt = s:FindDelimiterIndex(s:Left({'alt': 1}), line)
     let indxLeftPlace = s:FindDelimiterIndex(g:NERDLPlace, line)
     let indxRightPlace = s:FindDelimiterIndex(g:NERDRPlace, line)