diff --git a/core/clang/arm.mk b/core/clang/arm.mk
index f76a1825ce..bf31f51bfc 100644
--- a/core/clang/arm.mk
+++ b/core/clang/arm.mk
@@ -40,6 +40,5 @@ CLANG_CONFIG_arm_UNKNOWN_CFLAGS := \
 define subst-clang-incompatible-arm-flags
   $(subst -march=armv5te,-march=armv5t,\
   $(subst -march=armv5e,-march=armv5,\
-  $(subst -mcpu=cortex-a15,-march=armv7-a,\
-  $(1))))
+  $(1)))
 endef