diff --git a/openamp/libmetal.defs b/openamp/libmetal.defs
index fb0065ca6eb..902caae1634 100644
--- a/openamp/libmetal.defs
+++ b/openamp/libmetal.defs
@@ -23,11 +23,11 @@
 ifeq ($(CONFIG_OPENAMP),y)
 
 ifeq ($(CONFIG_ARCH), sim)
-ifeq ($(CONFIG_HOST_ARM64), y)
+ifeq ($(CONFIG_HOST_ARM64),y)
 LIBMETAL_ARCH = aarch64
-else ifeq ($(CONFIG_HOST_ARM), y)
+else ifeq ($(CONFIG_HOST_ARM),y)
 LIBMETAL_ARCH = arm
-else ifeq ($(CONFIG_HOST_X86), y)
+else ifeq ($(CONFIG_HOST_X86),y)
 LIBMETAL_ARCH = x86
 else
 LIBMETAL_ARCH = x86_64