diff --git a/librz/io/p/io_winedbg.c b/librz/io/p/io_winedbg.c
index 56a094f0aa..83291fca1b 100644
--- a/librz/io/p/io_winedbg.c
+++ b/librz/io/p/io_winedbg.c
@@ -243,7 +243,7 @@ static char *__system(RzIO *io, RzIODesc *fd, const char *cmd) {
 		eprintf("pid : show current process id\n");
 	} else if (!strncmp(cmd, "dr8", 3)) {
 		struct winedbg_x86_32 r = regState();
-		ut8 *arena = (ut8 *)calloc(3, sizeof(struct winedbg_x86_32));
+		struct winedbg_x86_32 *arena = RZ_NEWS0(struct winedbg_x86_32, 3);
 		if (arena) {
 			rz_hex_bin2str((ut8 *)&r, sizeof(r), (char *)arena);
 			return (char *)arena;