diff --git a/Library/Homebrew/tab.rb b/Library/Homebrew/tab.rb
index f077f64514..14c3e93d8a 100644
--- a/Library/Homebrew/tab.rb
+++ b/Library/Homebrew/tab.rb
@@ -12,18 +12,18 @@ class Tab < OpenStruct
 
   def self.create(formula, compiler, stdlib, build)
     attributes = {
-      :used_options => build.used_options.as_flags,
-      :unused_options => build.unused_options.as_flags,
-      :tabfile => formula.prefix.join(FILENAME),
-      :built_as_bottle => !!ARGV.build_bottle?,
-      :poured_from_bottle => false,
-      :tapped_from => formula.tap,
-      :time => Time.now.to_i,
-      :HEAD => Homebrew.git_head,
-      :compiler => compiler,
-      :stdlib => stdlib,
-      :source => {
-        :path => formula.path.to_s,
+      "used_options" => build.used_options.as_flags,
+      "unused_options" => build.unused_options.as_flags,
+      "tabfile" => formula.prefix.join(FILENAME),
+      "built_as_bottle" => !!ARGV.build_bottle?,
+      "poured_from_bottle" => false,
+      "tapped_from" => formula.tap,
+      "time" => Time.now.to_i,
+      "HEAD" => Homebrew.git_head,
+      "compiler" => compiler,
+      "stdlib" => stdlib,
+      "source" => {
+        "path" => formula.path.to_s,
       },
     }
 
@@ -32,7 +32,7 @@ class Tab < OpenStruct
 
   def self.from_file path
     attributes = Utils::JSON.load(File.read(path))
-    attributes[:tabfile] = path
+    attributes["tabfile"] = path
     new(attributes)
   end
 
@@ -86,7 +86,7 @@ class Tab < OpenStruct
     else
       tab = empty
       tab.unused_options = f.options.as_flags
-      tab.source = { :path => f.path.to_s }
+      tab.source = { "path" => f.path.to_s }
     end
 
     tab
@@ -94,17 +94,17 @@ class Tab < OpenStruct
 
   def self.empty
     attributes = {
-      :used_options => [],
-      :unused_options => [],
-      :built_as_bottle => false,
-      :poured_from_bottle => false,
-      :tapped_from => "",
-      :time => nil,
-      :HEAD => nil,
-      :stdlib => nil,
-      :compiler => "clang",
-      :source => {
-        :path => nil,
+      "used_options" => [],
+      "unused_options" => [],
+      "built_as_bottle" => false,
+      "poured_from_bottle" => false,
+      "tapped_from" => "",
+      "time" => nil,
+      "HEAD" => nil,
+      "stdlib" => nil,
+      "compiler" => "clang",
+      "source" => {
+        "path" => nil,
       },
     }
 
@@ -157,16 +157,16 @@ class Tab < OpenStruct
 
   def to_json
     attributes = {
-      :used_options => used_options.as_flags,
-      :unused_options => unused_options.as_flags,
-      :built_as_bottle => built_as_bottle,
-      :poured_from_bottle => poured_from_bottle,
-      :tapped_from => tapped_from,
-      :time => time,
-      :HEAD => self.HEAD,
-      :stdlib => (stdlib.to_s if stdlib),
-      :compiler => (compiler.to_s if compiler),
-      :source => source || {},
+      "used_options" => used_options.as_flags,
+      "unused_options" => unused_options.as_flags,
+      "built_as_bottle" => built_as_bottle,
+      "poured_from_bottle" => poured_from_bottle,
+      "tapped_from" => tapped_from,
+      "time" => time,
+      "HEAD" => self.HEAD,
+      "stdlib" => (stdlib.to_s if stdlib),
+      "compiler" => (compiler.to_s if compiler),
+      "source" => source || {},
     }
 
     Utils::JSON.dump(attributes)
diff --git a/Library/Homebrew/test/test_tab.rb b/Library/Homebrew/test/test_tab.rb
index 1ffa7fbb03..e6116b057a 100644
--- a/Library/Homebrew/test/test_tab.rb
+++ b/Library/Homebrew/test/test_tab.rb
@@ -8,16 +8,16 @@ class TabTests < Homebrew::TestCase
     @unused = Options.create(%w(--with-baz --without-qux))
 
     @tab = Tab.new({
-      :used_options       => @used.as_flags,
-      :unused_options     => @unused.as_flags,
-      :built_as_bottle    => false,
-      :poured_from_bottle => true,
-      :tapped_from        => "Homebrew/homebrew",
-      :time               => nil,
-      :HEAD               => TEST_SHA1,
-      :compiler           => "clang",
-      :stdlib             => "libcxx",
-      :source             => { :path => nil },
+      "used_options"       => @used.as_flags,
+      "unused_options"     => @unused.as_flags,
+      "built_as_bottle"    => false,
+      "poured_from_bottle" => true,
+      "tapped_from"        => "Homebrew/homebrew",
+      "time"               => nil,
+      "HEAD"               => TEST_SHA1,
+      "compiler"           => "clang",
+      "stdlib"             => "libcxx",
+      "source"             => { "path" => nil },
     })
   end