diff --git a/Modules/CMakePlatformId.h.in b/Modules/CMakePlatformId.h.in
index fd0367e489..0d92412408 100644
--- a/Modules/CMakePlatformId.h.in
+++ b/Modules/CMakePlatformId.h.in
@@ -221,7 +221,7 @@
 
 #elif defined(__clang__) && defined(__ti__)
 # if defined(__ARM_ARCH)
-#  define ARCHITECTURE_ID "Arm"
+#  define ARCHITECTURE_ID "ARM"
 
 # else /* unknown architecture */
 #  define ARCHITECTURE_ID ""