diff --git a/Library/Homebrew/.simplecov b/Library/Homebrew/.simplecov
index 96b1f3ec0e..38c7d530e1 100755
--- a/Library/Homebrew/.simplecov
+++ b/Library/Homebrew/.simplecov
@@ -50,8 +50,8 @@ SimpleCov.start do
 
   require "rbconfig"
   host_os = RbConfig::CONFIG["host_os"]
-  add_filter %r{^/os/mac/} if host_os !~ /darwin/
-  add_filter %r{^/os/linux/} if host_os !~ /linux/
+  add_filter %r{/os/mac} if host_os !~ /darwin/
+  add_filter %r{/os/linux} if host_os !~ /linux/
 
   # Add groups and the proper project name to the output.
   project_name "Homebrew"
diff --git a/Library/Homebrew/test/.codecov.yml b/Library/Homebrew/test/.codecov.yml
index 9c75dfe6a0..7ab7a77c6f 100644
--- a/Library/Homebrew/test/.codecov.yml
+++ b/Library/Homebrew/test/.codecov.yml
@@ -1,4 +1,8 @@
 comment: off
-
 fixes:
   - "::Library/Homebrew/"
+coverage:
+  status:
+    project:
+    default:
+        threshold: 0.1