2 files changed, 4 insertions, 2 deletions
diff --git a/tools/mrbc/mrbc.c b/tools/mrbc/mrbc.c
index 94675c391..5382b90a8 100644
--- a/tools/mrbc/mrbc.c
+++ b/tools/mrbc/mrbc.c
@@ -70,8 +70,9 @@ parse_args(mrb_state *mrb, int argc, char **argv, struct _args *args)
   char *infile = NULL;
   char *outfile = NULL;
   char **origargv = argv;
+  static const struct _args args_zero = { 0 };
 
-  memset(args, 0, sizeof(*args));
+  *args = args_zero;
   args->ext = RITEBIN_EXT;
 
   for (argc--,argv++; argc > 0; argc--,argv++) {
diff --git a/tools/mruby/mruby.c b/tools/mruby/mruby.c
index 2719bad01..444170270 100644
--- a/tools/mruby/mruby.c
+++ b/tools/mruby/mruby.c
@@ -57,8 +57,9 @@ static int
 parse_args(mrb_state *mrb, int argc, char **argv, struct _args *args)
 {
   char **origargv = argv;
+  static const struct _args args_zero = { 0 };
 
-  memset(args, 0, sizeof(*args));
+  *args = args_zero;
 
   for (argc--,argv++; argc > 0; argc--,argv++) {
     char *item;