diff --git a/Makefile b/Makefile
index 4c517004..e21018b5 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,7 @@
+ifneq ($(TARGET),)
+BOLOS_SDK = $(value $(shell echo $(TARGET) | tr '[:lower:]' '[:upper:]')_SDK)
+endif
+
 ifeq ($(BOLOS_SDK),)
 $(error Environment variable BOLOS_SDK is not set)
 endif