diff --git a/gdb/.Sanitize b/gdb/.Sanitize
index d2336a6c9b..82c8d11618 100644
--- a/gdb/.Sanitize
+++ b/gdb/.Sanitize
@@ -250,6 +250,7 @@ tahoe-pinsn.c
 target.c
 target.h
 terminal.h
+testsuite
 tm-29k.h
 tm-3b1.h
 tm-68k-noun.h