diff --git a/main/acl.c b/main/acl.c
index e272ef81882117374a02c2f14e3e5dc62bcbd8cc..3c01fb65b6e866b475bfd2223d6897ad5ab1f836 100644
--- a/main/acl.c
+++ b/main/acl.c
@@ -237,7 +237,7 @@ static struct ast_ha *ast_duplicate_ha(struct ast_ha *original)
 {
 	struct ast_ha *new_ha;
 
-	if ((new_ha = ast_calloc(sizeof(*new_ha)))) {
+	if ((new_ha = ast_calloc(1, sizeof(*new_ha)))) {
 		/* Copy from original to new object */
 		ast_copy_ha(original, new_ha);
 	}
@@ -284,7 +284,7 @@ struct ast_ha *ast_append_ha(const char *sense, const char *stuff, struct ast_ha
 		path = path->next;
 	}
 
-	if (!(ha = ast_calloc(sizeof(*ha)))) {
+	if (!(ha = ast_calloc(1, sizeof(*ha)))) {
 		return ret;
 	}