diff --git a/src/libjasper/jp2/jp2_cod.c b/src/libjasper/jp2/jp2_cod.c
index 7f3608a..c4ba73c 100644
--- a/src/libjasper/jp2/jp2_cod.c
+++ b/src/libjasper/jp2/jp2_cod.c
@@ -248,7 +248,7 @@ jp2_box_t *jp2_box_get(jas_stream_t *in)
 	box = 0;
 	tmpstream = 0;
 
-	if (!(box = jas_malloc(sizeof(jp2_box_t)))) {
+	if (!(box = jas_calloc(1, sizeof(jp2_box_t)))) {
 		goto error;
 	}