diff --git a/default-configs/i386-softmmu.mak b/default-configs/i386-softmmu.mak
index 4a32342..db29e5b 100644
--- a/default-configs/i386-softmmu.mak
+++ b/default-configs/i386-softmmu.mak
@@ -26,3 +26,4 @@ CONFIG_APPLESMC=y
 CONFIG_I8259=y
 CONFIG_PFLASH_CFI01=y
 CONFIG_TPM_TIS=y
+CONFIG_TPM_PASSTHROUGH=y
diff --git a/default-configs/x86_64-softmmu.mak b/default-configs/x86_64-softmmu.mak
index d518f51..2063c81 100644
--- a/default-configs/x86_64-softmmu.mak
+++ b/default-configs/x86_64-softmmu.mak
@@ -26,3 +26,4 @@ CONFIG_APPLESMC=y
 CONFIG_I8259=y
 CONFIG_PFLASH_CFI01=y
 CONFIG_TPM_TIS=y
+CONFIG_TPM_PASSTHROUGH=y