diff --git a/middleman-core/.simplecov b/middleman-core/.simplecov
index ec9447f6..1e7f68e2 100644
--- a/middleman-core/.simplecov
+++ b/middleman-core/.simplecov
@@ -1,6 +1,7 @@
 SimpleCov.start do
+  add_filter '/fixtures/'
   add_filter '/features/'
   add_filter '/spec/'
-  add_filter '/vendor'
   add_filter '/step_definitions/'
+  add_filter '/lib/vendored-middleman-deps/'
 end
\ No newline at end of file