diff --git a/board/phytec/common/Makefile b/board/phytec/common/Makefile
index fe28964..35c8174 100644
--- a/board/phytec/common/Makefile
+++ b/board/phytec/common/Makefile
@@ -7,5 +7,5 @@
 obj- := __dummy__.o
 endif
 
-obj-$(CONFIG_PHYTEC_SOM_DETECTION) += phytec_som_detection.o
-obj-$(CONFIG_PHYTEC_IMX8M_SOM_DETECTION) += imx8m_som_detection.o
+obj-y += phytec_som_detection.o
+obj-$(CONFIG_ARCH_IMX8M) += imx8m_som_detection.o