diff --git a/app/models/notice.rb b/app/models/notice.rb
index 7ad3e51..dd9d03d 100644
--- a/app/models/notice.rb
+++ b/app/models/notice.rb
@@ -57,7 +57,7 @@ class Notice
   end
   
   def self.in_app_backtrace_line? line
-    line['file'] =~ %r{^\[PROJECT_ROOT\]/(?!(vendor))}
+    !!(line['file'] =~ %r{^\[PROJECT_ROOT\]/(?!(vendor))})
   end
   
   def request
@@ -84,10 +84,6 @@ class Notice
     err.update_attributes(:last_notice_at => created_at)
   end
   
-  def top_in_app_backtrace_line
-    @top_in_app_backtrace_line ||= self.backtrace.find {|line| Notice.in_app_backtrace_line?(line) }
-  end
-  
   protected
 
   def should_notify?
diff --git a/spec/models/notice_spec.rb b/spec/models/notice_spec.rb
index d0352da..4942520 100644
--- a/spec/models/notice_spec.rb
+++ b/spec/models/notice_spec.rb
@@ -22,9 +22,8 @@ describe Notice do
     end
   end
   
-  context '#top_in_app_backtrace_line' do
-    before do
-      backtrace = [{
+  context '.in_app_backtrace_line?' do
+    let(:backtrace) do [{
         'number'  => rand(999),
         'file'    => '[GEM_ROOT]/gems/actionpack-3.0.4/lib/action_controller/metal/rescue.rb', 
         'method'  => ActiveSupport.methods.shuffle.first
@@ -36,18 +35,19 @@ describe Notice do
         'number'  => rand(999),
         'file'    => '[PROJECT_ROOT]/lib/set_headers.rb',
         'method'  => ActiveSupport.methods.shuffle.first
-      }, {
-        'number'  => rand(999),
-        'file'    => '[PROJECT_ROOT]/lib/detect_api.rb',
-        'method'  => ActiveSupport.methods.shuffle.first
       }]
+    end
 
-      @notice = Factory(:notice, :backtrace => backtrace)
+    it "should be false for line not starting with PROJECT_ROOT" do
+      Notice.in_app_backtrace_line?(backtrace[0]).should == false
     end
-    
-    it 'finds the correct line' do
-      line = @notice.top_in_app_backtrace_line
-      line['file'].should == '[PROJECT_ROOT]/lib/set_headers.rb'
+
+    it "should be false for file in vendor dir" do
+      Notice.in_app_backtrace_line?(backtrace[1]).should == false
+    end
+
+    it "should be true for application file" do
+      Notice.in_app_backtrace_line?(backtrace[2]).should == true
     end
   end
   
--
libgit2 0.21.2