diff --git a/bin/brew b/bin/brew
index 960829b585..442b3e6da5 100755
--- a/bin/brew
+++ b/bin/brew
@@ -263,10 +263,15 @@ begin
     puts *uses.sort
 
   when 'deps'
-    require 'formula_installer'
-    if ARGV.include?("-1") or ARGV.include?("--1")
+    if ARGV.include?('--all')
+      require 'formula'
+      Formula.all.each do |f|
+        puts "#{f.name}:#{f.deps.join(' ')}"
+      end
+    elsif ARGV.include?("-1") or ARGV.include?("--1")
       puts *ARGV.formulae.map{ |f| f.deps or [] }.flatten.uniq.sort
     else
+      require 'formula_installer'
       puts *ARGV.formulae.map{ |f| FormulaInstaller.expand_deps(f).map{|f| f.name} }.flatten.uniq.sort
     end