diff --git a/src/soc/mediatek/mt8189/Makefile.mk b/src/soc/mediatek/mt8189/Makefile.mk
index 2f73bcc1f0..f7294c0e74 100644
--- a/src/soc/mediatek/mt8189/Makefile.mk
+++ b/src/soc/mediatek/mt8189/Makefile.mk
@@ -67,6 +67,12 @@ CPPFLAGS_common += -Isrc/soc/mediatek/common/dp/include
 
 MT8189_BLOB_DIR := 3rdparty/blobs/soc/mediatek/mt8189
 
+BL31_LIB := $(top)/$(MT8189_BLOB_DIR)/libbl31.a
+
+ifneq ($(wildcard $(BL31_LIB)),)
+BL31_MAKEARGS += MTKLIB_PATH=$(BL31_LIB)
+endif
+
 firmware-files := \
 	$(CONFIG_DPM_DM_FIRMWARE) \
 	$(CONFIG_DPM_PM_FIRMWARE) \