diff --git a/.github/workflows/toolchains/toolchain-arm64.cmake b/.github/workflows/toolchains/toolchain-arm64.cmake
index 5ac44be..7416627 100644
--- a/.github/workflows/toolchains/toolchain-arm64.cmake
+++ b/.github/workflows/toolchains/toolchain-arm64.cmake
@@ -19,7 +19,7 @@ set(CMAKE_AR /usr/bin/llvm-ar-10)
 #set(CMAKE_EXE_LINKER_FLAGS_INIT "-fuse-ld=lld -v")
 #set(CMAKE_MODULE_LINKER_FLAGS_INIT "-fuse-ld=lld -v")
 #set(CMAKE_SHARED_LINKER_FLAGS_INIT "-fuse-ld=lld -v")
-#set(CMAKE_CXX_FLAGS_INIT "-stdlib=libc++")
+set(CMAKE_CXX_FLAGS_INIT "-stdlib=libc++")
 
 
 # Use our definitions for compiler tools