diff --git a/arch/arm64/src/cmake/gcc.cmake b/arch/arm64/src/cmake/gcc.cmake
index c3cb37bebce..3e8a0ad2732 100644
--- a/arch/arm64/src/cmake/gcc.cmake
+++ b/arch/arm64/src/cmake/gcc.cmake
@@ -29,7 +29,7 @@ set(CMAKE_CXX_COMPILER_TARGET ${TOOLCHAIN_PREFIX})
 set(CMAKE_ASM_COMPILER ${CMAKE_C_COMPILER})
 set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}-gcc)
 set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}-g++)
-set(CMAKE_STRIP ${TOOLCHAIN_PREFIX}-strip --strl dunneeded)
+set(CMAKE_STRIP ${TOOLCHAIN_PREFIX}-strip --strip-unneeded)
 set(CMAKE_OBJCOPY ${TOOLCHAIN_PREFIX}-objcopy)
 set(CMAKE_OBJDUMP ${TOOLCHAIN_PREFIX}-objdump)
 set(CMAKE_LINKER ${TOOLCHAIN_PREFIX}-ld)