diff --git a/plugins/uefi/fu-self-test.c b/plugins/uefi/fu-self-test.c
index 75eff39bd..942a8477a 100644
--- a/plugins/uefi/fu-self-test.c
+++ b/plugins/uefi/fu-self-test.c
@@ -50,6 +50,7 @@ fu_uefi_pcrs_2_0_func (void)
 	g_autoptr(GPtrArray) pcr0s = NULL;
 	g_autoptr(GPtrArray) pcrXs = NULL;
 	const gchar *tpm_server_running = g_getenv ("TPM_SERVER_RUNNING");
+	g_setenv ("FWUPD_FORCE_TPM2", "1", TRUE);
 
 	if (!fu_uefi_pcrs_setup (pcrs, &error)) {
 		if (tpm_server_running == NULL &&
@@ -65,6 +66,7 @@ fu_uefi_pcrs_2_0_func (void)
 	pcrXs = fu_uefi_pcrs_get_checksums (pcrs, 999);
 	g_assert_nonnull (pcrXs);
 	g_assert_cmpint (pcrXs->len, ==, 0);
+	g_unsetenv ("FWUPD_FORCE_TPM2");
 }
 
 static void
diff --git a/plugins/uefi/fu-uefi-pcrs.c b/plugins/uefi/fu-uefi-pcrs.c
index 3a465da23..818c81459 100644
--- a/plugins/uefi/fu-uefi-pcrs.c
+++ b/plugins/uefi/fu-uefi-pcrs.c
@@ -188,7 +188,8 @@ fu_uefi_pcrs_setup (FuUefiPcrs *self, GError **error)
 	sysfstpmdir = fu_common_get_path (FU_PATH_KIND_SYSFSDIR_TPM);
 	devpath = g_build_filename (sysfstpmdir, "tpm0", NULL);
 	fn_pcrs = g_build_filename (devpath, "pcrs", NULL);
-	if (g_file_test (fn_pcrs, G_FILE_TEST_EXISTS)) {
+	if (g_file_test (fn_pcrs, G_FILE_TEST_EXISTS) &&
+	    g_getenv ("FWUPD_FORCE_TPM2") == NULL) {
 		if (!fu_uefi_pcrs_setup_tpm12 (self, fn_pcrs, error))
 			return FALSE;