diff --git a/sim/h8300/.Sanitize b/sim/h8300/.Sanitize
index 0f596ce301..c22709372f 100644
--- a/sim/h8300/.Sanitize
+++ b/sim/h8300/.Sanitize
@@ -30,6 +30,7 @@ Makefile.in
 configure.in
 h8300.mt
 compile.c
+writecode.c
 run.c
 inst.h