diff --git a/autoload/ale/python.vim b/autoload/ale/python.vim
index 4f14697..d788b77 100644
--- a/autoload/ale/python.vim
+++ b/autoload/ale/python.vim
@@ -71,7 +71,7 @@ function! ale#python#FindVirtualenv(buffer) abort
         endfor
     endfor
 
-    return ''
+    return $VIRTUAL_ENV
 endfunction
 
 " Run an executable check for Python scripts.