diff --git a/misc.c b/misc.c
index 1e32b6f..45b4b10 100644
--- a/misc.c
+++ b/misc.c
@@ -29,7 +29,7 @@
 #include <grp.h>
 #endif
 
-__RCSID("$MirOS: src/bin/mksh/misc.c,v 1.115 2009/08/08 13:08:52 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/misc.c,v 1.116 2009/08/28 21:04:16 tg Exp $");
 
 #undef USE_CHVT
 /* XXX conditions correct? */
@@ -446,7 +446,7 @@ parse_args(const char **argv,
 		    xstrcmp);
 	}
 	if (arrayset) {
-		set_array(array, arrayset, argv + go.optind);
+		set_array(array, arrayset > 0 ? true : false, argv + go.optind);
 		for (; argv[go.optind]; go.optind++)
 			;
 	}
diff --git a/sh.h b/sh.h
index 6116c61..31a0b8c 100644
--- a/sh.h
+++ b/sh.h
@@ -134,7 +134,7 @@
 #endif
 
 #ifdef EXTERN
-__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.330 2009/08/28 21:01:26 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.331 2009/08/28 21:04:17 tg Exp $");
 #endif
 #define MKSH_VERSION "R39 2009/08/08"
 
@@ -1647,7 +1647,7 @@ void change_random(unsigned long);
 void change_winsz(void);
 int array_ref_len(const char *);
 char *arrayname(const char *);
-void set_array(const char *, int, const char **);
+void set_array(const char *, bool, const char **);
 
 enum Test_op {
 	TO_NONOP = 0,	/* non-operator */
diff --git a/var.c b/var.c
index da319da..d53d97e 100644
--- a/var.c
+++ b/var.c
@@ -22,7 +22,7 @@
 
 #include "sh.h"
 
-__RCSID("$MirOS: src/bin/mksh/var.c,v 1.82 2009/08/28 21:01:27 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/var.c,v 1.83 2009/08/28 21:04:18 tg Exp $");
 
 /*
  * Variables
@@ -1315,10 +1315,10 @@ arrayname(const char *str)
 	return (rv);
 }
 
-/* Set (or overwrite, if !reset) the array variable var to the values in vals.
+/* Set (or overwrite, if reset) the array variable var to the values in vals.
  */
 void
-set_array(const char *var, int reset, const char **vals)
+set_array(const char *var, bool reset, const char **vals)
 {
 	struct tbl *vp, *vq;
 	uint32_t i;
@@ -1330,7 +1330,7 @@ set_array(const char *var, int reset, const char **vals)
 	if ((vp->flag&RDONLY))
 		errorf("%s: is read only", var);
 	/* This code is quite non-optimal */
-	if (reset > 0)
+	if (reset)
 		/* trash existing values and attributes */
 		unset(vp, 0);
 	/* todo: would be nice for assignment to completely succeed or