diff --git a/Library/Homebrew/formula_installer.rb b/Library/Homebrew/formula_installer.rb
index 0a0f61aeb9..5f43919c7d 100644
--- a/Library/Homebrew/formula_installer.rb
+++ b/Library/Homebrew/formula_installer.rb
@@ -141,7 +141,10 @@ class FormulaInstaller
     build_bottle_preinstall if ARGV.build_bottle?
 
     unless @poured_bottle
-      install_dependencies if @pour_failed && !ignore_deps
+      if @pour_failed and not ignore_deps
+        check_requirements
+        install_dependencies
+      end
       build
       clean
     end