1 files changed, 1 insertions, 1 deletions
diff --git a/bin/bundle b/bin/bundle
index 22995af..3cb2676 100755
--- a/bin/bundle
+++ b/bin/bundle
@@ -14,7 +14,7 @@ m = Module.new do
   module_function
 
   def invoked_as_script?
-    File.expand_path($0) == File.expand_path(__FILE__)
+    File.expand_path($PROGRAM_NAME) == File.expand_path(__FILE__)
   end
 
   def env_var_version