diff --git a/hw/tpm/Makefile.objs b/hw/tpm/Makefile.objs
index 700c878622..de0b85d02a 100644
--- a/hw/tpm/Makefile.objs
+++ b/hw/tpm/Makefile.objs
@@ -1,5 +1,5 @@
-common-obj-y += tpm_util.o
-obj-y += tpm_ppi.o
+common-obj-$(CONFIG_TPM) += tpm_util.o
+obj-$(call lor,$(CONFIG_TPM_TIS),$(CONFIG_TPM_CRB)) += tpm_ppi.o
 common-obj-$(CONFIG_TPM_TIS) += tpm_tis.o
 common-obj-$(CONFIG_TPM_CRB) += tpm_crb.o
 common-obj-$(CONFIG_TPM_PASSTHROUGH) += tpm_passthrough.o