diff --git a/src/util/virtpm.c b/src/util/virtpm.c
index 81fd6166cf..298caaad80 100644
--- a/src/util/virtpm.c
+++ b/src/util/virtpm.c
@@ -40,6 +40,8 @@ VIR_ENUM_IMPL(virTPMSwtpmFeature,
               VIR_TPM_SWTPM_FEATURE_LAST,
               "cmdarg-pwd-fd",
               "cmdarg-migration",
+              "nvram-backend-dir",
+              "nvram-backend-file",
 );
 
 VIR_ENUM_IMPL(virTPMSwtpmSetupFeature,
diff --git a/src/util/virtpm.h b/src/util/virtpm.h
index fb330effa8..99dbcc1dc8 100644
--- a/src/util/virtpm.h
+++ b/src/util/virtpm.h
@@ -31,6 +31,8 @@ bool virTPMHasSwtpm(void);
 typedef enum {
     VIR_TPM_SWTPM_FEATURE_CMDARG_PWD_FD,
     VIR_TPM_SWTPM_FEATURE_CMDARG_MIGRATION,
+    VIR_TPM_SWTPM_FEATURE_NVRAM_BACKEND_DIR,
+    VIR_TPM_SWTPM_FEATURE_NVRAM_BACKEND_FILE,
 
     VIR_TPM_SWTPM_FEATURE_LAST
 } virTPMSwtpmFeature;