diff --git a/gas/doc/.Sanitize b/gas/doc/.Sanitize
index d1eae156117..c7bf5e3a487 100644
--- a/gas/doc/.Sanitize
+++ b/gas/doc/.Sanitize
@@ -37,6 +37,7 @@ c-h8500.texi
 c-hppa.texi
 c-i386.texi
 c-i960.texi
+c-m32r.texi
 c-m68k.texi
 c-mips.texi
 c-ns32k.texi