diff --git a/Library/Homebrew/formula_installer.rb b/Library/Homebrew/formula_installer.rb
index 15eba4bfe1..38ecf30bf0 100644
--- a/Library/Homebrew/formula_installer.rb
+++ b/Library/Homebrew/formula_installer.rb
@@ -424,7 +424,7 @@ class FormulaInstaller
 
   def sanitized_ARGV_options
     args = []
-    args << "--ignore-dependencies" if ARGV.ignore_deps?
+    args << "--ignore-dependencies" if ignore_deps?
 
     if build_bottle?
       args << "--build-bottle"