diff --git a/lib/ecdsa/Makefile b/lib/ecdsa/Makefile
index 771d6d3..32b6183 100644
--- a/lib/ecdsa/Makefile
+++ b/lib/ecdsa/Makefile
@@ -1 +1 @@
-obj-$(CONFIG_$(SPL_)ECDSA_VERIFY) += ecdsa-verify.o
+obj-$(CONFIG_$(XPL_)ECDSA_VERIFY) += ecdsa-verify.o