diff --git a/include/grub/efi/tpm.h b/include/grub/efi/tpm.h
index 79c478832..3ea6b4de1 100644
--- a/include/grub/efi/tpm.h
+++ b/include/grub/efi/tpm.h
@@ -164,7 +164,7 @@ struct grub_efi_tpm2_protocol
 				      grub_efi_boolean_t * EventLogTruncated);
   grub_efi_status_t (*hash_log_extend_event) (struct grub_efi_tpm2_protocol *
 					      this, grub_efi_uint64_t Flags,
-					      grub_efi_physical_address_t *
+					      grub_efi_physical_address_t
 					      DataToHash,
 					      grub_efi_uint64_t DataToHashLen,
 					      EFI_TCG2_EVENT *EfiTcgEvent);