diff --git a/autoload/airline/extensions.vim b/autoload/airline/extensions.vim
index 521ce641..814318f4 100644
--- a/autoload/airline/extensions.vim
+++ b/autoload/airline/extensions.vim
@@ -57,12 +57,12 @@ endfunction
 
 let s:active_winnr = -1
 function! airline#extensions#apply(...)
+  let s:active_winnr = winnr()
+
   if s:is_excluded_window()
     return -1
   endif
 
-  let s:active_winnr = winnr()
-
   if &buftype == 'quickfix'
     let w:airline_section_a = '%q'
     let w:airline_section_b = '%{get(w:, "quickfix_title", "")}'