diff --git a/recipes-external/gcc/gcc-runtime-external.bb b/recipes-external/gcc/gcc-runtime-external.bb
index 65163a0..4c98e9c 100644
--- a/recipes-external/gcc/gcc-runtime-external.bb
+++ b/recipes-external/gcc/gcc-runtime-external.bb
@@ -17,7 +17,7 @@ python () {
 }
 
 target_libdir = "${libdir}"
-HEADERS_MULTILIB_SUFFIX ?= "${@oe.external.run(d, 'gcc', *(TARGET_CC_ARCH.split() + ['-print-sysroot-headers-suffix'])).rstrip()}"
+HEADERS_MULTILIB_SUFFIX ?= "${@oe.external.run(d, 'gcc', *('${TARGET_CC_ARCH}'.split() + ['-print-sysroot-headers-suffix'])).rstrip()}"
 external_libroot = "${@os.path.realpath('${EXTERNAL_TOOLCHAIN_LIBROOT}').replace(os.path.realpath('${EXTERNAL_TOOLCHAIN}') + '/', '/')}"
 FILES_MIRRORS =. "\
     ${libdir}/gcc/${TARGET_SYS}/${GCC_VERSION}/|${external_libroot}/\n \