diff --git a/lib/jasmine/files_list.rb b/lib/jasmine/files_list.rb
index 758078e..c20f83b 100644
--- a/lib/jasmine/files_list.rb
+++ b/lib/jasmine/files_list.rb
@@ -100,7 +100,15 @@ module Jasmine
     end
 
     def spec_filter
-      @spec_filter ||= (@options[:only] ? @options[:only].collect { |path| Dir[path] }.flatten : [])
+      return @spec_filter if @spec_filter
+
+      @spec_filter = begin
+                       if @options[:only]
+                         @options[:only].collect { |path| expanded_dir(path) }.flatten
+                       else
+                         []
+                       end
+                     end
     end
 
     def use_config!
@@ -112,7 +120,7 @@ module Jasmine
           data[searches].flatten.collect do |search|
             path = search
             path = File.join(data[root], path) if data[root]
-            found_files = Dir[path] - @files
+            found_files = expanded_dir(path) - @files
 
             @files += found_files
 
@@ -136,6 +144,10 @@ module Jasmine
     def config?
       @options[:config]
     end
+
+    def expanded_dir(path)
+      Dir[path].collect { |file| File.expand_path(file) }
+    end
   end
 end
 
diff --git a/spec/bin/jasmine-headless-webkit_spec.rb b/spec/bin/jasmine-headless-webkit_spec.rb
index 1efe50c..72845c0 100644
--- a/spec/bin/jasmine-headless-webkit_spec.rb
+++ b/spec/bin/jasmine-headless-webkit_spec.rb
@@ -1,4 +1,5 @@
 require 'spec_helper'
+require 'tempfile'
 
 describe "jasmine-headless-webkit" do
   let(:report) { 'spec/report.txt' }
@@ -122,8 +123,8 @@ describe "jasmine-headless-webkit" do
       files = %x{bin/jasmine-headless-webkit -l -j spec/jasmine/success/success.yml}
       $?.exitstatus.should == 0
 
-      files.lines.to_a.should include("./spec/jasmine/success/success.js\n")
-      files.lines.to_a.should include("./spec/jasmine/success/success_spec.js\n")
+      files.lines.to_a.should include(File.expand_path("./spec/jasmine/success/success.js\n"))
+      files.lines.to_a.should include(File.expand_path("./spec/jasmine/success/success_spec.js\n"))
     end
   end