diff --git a/tools/fit_check_sign.c b/tools/fit_check_sign.c
index 3d1d33fdab..a5827af976 100644
--- a/tools/fit_check_sign.c
+++ b/tools/fit_check_sign.c
@@ -37,6 +37,7 @@ int main(int argc, char **argv)
 {
 	int ffd = -1;
 	int kfd = -1;
+	int offset, next_offset;
 	struct stat fsbuf;
 	struct stat ksbuf;
 	void *fit_blob;
@@ -83,7 +84,23 @@ int main(int argc, char **argv)
 		return EXIT_FAILURE;
 
 	image_set_host_blob(key_blob);
-	ret = fit_check_sign(fit_blob, key_blob, config_name);
+	if (config_name) {
+		ret = fit_check_sign(fit_blob, key_blob, config_name);
+	} else {
+		offset = fdt_path_offset(fit_blob, FIT_CONFS_PATH);
+		if (offset < 0) {
+			return EXIT_FAILURE;
+		}
+		for (next_offset = fdt_first_subnode(fit_blob, offset);
+		     next_offset >= 0;
+		     next_offset = fdt_next_subnode(fit_blob, next_offset)) {
+			config_name = (char *)fdt_get_name(fit_blob, next_offset, NULL);
+			ret = fit_check_sign(fit_blob, key_blob, config_name);
+			if (ret) {
+				break;
+			}
+		}
+	}
 	if (!ret) {
 		ret = EXIT_SUCCESS;
 		fprintf(stderr, "Signature check OK\n");