diff --git a/meta/conf/machine-sdk/x86_64.conf b/meta/conf/machine-sdk/x86_64.conf
index 2ab607e65c..3396f95d69 100644
--- a/meta/conf/machine-sdk/x86_64.conf
+++ b/meta/conf/machine-sdk/x86_64.conf
@@ -1,3 +1,4 @@
 SDK_ARCH = "x86_64"
+SDK_CC_ARCH = "-march=x86-64"
 ABIEXTENSION:class-crosssdk = ""
 ABIEXTENSION:class-nativesdk = ""