diff --git a/common/image-sig.c b/common/image-sig.c
index 4f6b4ec412..004fbc525b 100644
--- a/common/image-sig.c
+++ b/common/image-sig.c
@@ -211,7 +211,7 @@ static int fit_image_setup_verify(struct image_sign_info *info,
 	info->required_keynode = required_keynode;
 	printf("%s:%s", algo_name, info->keyname);
 
-	if (!info->checksum || !info->crypto) {
+	if (!info->checksum || !info->crypto || !info->padding) {
 		*err_msgp = "Unknown signature algorithm";
 		return -1;
 	}