diff --git a/gas/testsuite/gas/.Sanitize b/gas/testsuite/gas/.Sanitize
index a37c42210cb..c6a979965dd 100644
--- a/gas/testsuite/gas/.Sanitize
+++ b/gas/testsuite/gas/.Sanitize
@@ -32,6 +32,7 @@ ieee.fp
 m68k
 m68k-coff
 sparc-solaris
+sun4
 template
 
 Things-to-lose: