diff --git a/cmd/tpm-user-utils.h b/cmd/tpm-user-utils.h
index 8ce9861..a851d9c 100644
--- a/cmd/tpm-user-utils.h
+++ b/cmd/tpm-user-utils.h
@@ -17,6 +17,7 @@
 int type_string_write_vars(const char *type_str, u8 *data, char * const vars[]);
 int get_tpm(struct udevice **devp);
 
+int do_tpm_device(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]);
 int do_tpm_init(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]);
 int do_tpm_info(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]);
 int do_tpm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);