diff --git a/src/Apps/Apps.jl b/src/Apps/Apps.jl
index 2cf5b28fd1..6ac13bc978 100644
--- a/src/Apps/Apps.jl
+++ b/src/Apps/Apps.jl
@@ -82,7 +82,8 @@ end
 
 function check_apps_in_path(apps)
     for app_name in keys(apps)
-        which_result = Sys.which(app_name)
+        which_name = app_name * (Sys.iswindows() ? ".bat" : "")
+        which_result = Sys.which(which_name)
         if which_result === nothing
             @warn """
             App '$app_name' was installed but is not available in PATH.