diff --git a/MANIFEST.SKIP b/MANIFEST.SKIP
index c2a6eb1..bd1aa8a 100755
--- a/MANIFEST.SKIP
+++ b/MANIFEST.SKIP
@@ -26,6 +26,7 @@
 ^fixtures
 ^nytprof
 ^log
+^cover_db
 
 # Temp, old and emacs backup files.
 ~$
@@ -36,4 +37,12 @@
 \.cache$
 \.old$
 ^#.*#$
-^\.#
\ No newline at end of file
+^\.#
+
+# Protected checks
+^t/corpus/BRZ13
+^t/real/corpus/BRZ13
+^t/real/corpus/DCK
+^t/real/corpus/AGD-orig
+^t/real/corpus/FOLK-orig
+t/real/dck.t
\ No newline at end of file