diff --git a/tools/cmake/toolchains/ARM.cmake b/tools/cmake/toolchains/ARM.cmake
index 7ebb6179e1..41d914449b 100644
--- a/tools/cmake/toolchains/ARM.cmake
+++ b/tools/cmake/toolchains/ARM.cmake
@@ -4,7 +4,6 @@
 set(CMAKE_ASM_COMPILER "armclang")
 set(CMAKE_C_COMPILER "armclang")
 set(CMAKE_CXX_COMPILER "armclang")
-set(CMAKE_AR "armar")
 set(ARM_ELF2BIN "fromelf")
 set_property(GLOBAL PROPERTY ELF2BIN ${ARM_ELF2BIN})