diff --git a/drivers/char/tpm/Makefile b/drivers/char/tpm/Makefile
index eb41ff97d0ad13f577ff942364ffe8314a5a2999..83b8a9d7527efaac7726e522f106b362975d2111 100644
--- a/drivers/char/tpm/Makefile
+++ b/drivers/char/tpm/Makefile
@@ -2,6 +2,8 @@
 # Makefile for the kernel tpm device drivers.
 #
 obj-$(CONFIG_TCG_TPM) += tpm.o
+tpm-y := tpm-interface.o
+
 ifdef CONFIG_ACPI
 	obj-$(CONFIG_TCG_TPM) += tpm_bios.o
 	tpm_bios-objs += tpm_eventlog.o tpm_acpi.o tpm_ppi.o
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm-interface.c
similarity index 100%
rename from drivers/char/tpm/tpm.c
rename to drivers/char/tpm/tpm-interface.c