diff --git a/lib/redmine/scm/adapters/mercurial_adapter.rb b/lib/redmine/scm/adapters/mercurial_adapter.rb
index 6ef816b73..d52d863e5 100644
--- a/lib/redmine/scm/adapters/mercurial_adapter.rb
+++ b/lib/redmine/scm/adapters/mercurial_adapter.rb
@@ -39,7 +39,7 @@ module Redmine
           end
 
           def sq_bin
-            @@sq_bin ||= shell_quote(HG_BIN)
+            @@sq_bin ||= shell_quote_command
           end
 
           def client_version