diff --git a/.Sanitize b/.Sanitize
index 349eea3cbe0..61f74fc990a 100644
--- a/.Sanitize
+++ b/.Sanitize
@@ -106,6 +106,7 @@ mpw-config.in
 mpw-build.in
 
 Things-to-lose:
+testsuite
 
 # The lines between the "Do-last:" line and the end of the file
 # are executed as a /bin/sh shell script after everything else is