diff --git a/poky/meta/conf/machine/include/x86/README b/poky/meta/conf/machine/include/x86/README
index 2b6c46c..05aee53 100644
--- a/poky/meta/conf/machine/include/x86/README
+++ b/poky/meta/conf/machine/include/x86/README
@@ -14,7 +14,7 @@
 
 The TUNE_PKGARCH is defined as follows:
 
-TUNE_PKGARCH = ${TUNE_PKGARCH_tune-${DEFAULTTUNE}}
+TUNE_PKGARCH = ${TUNE_PKGARCH:tune-${DEFAULTTUNE}}
 
 The package architecture for 32-bit targets is historical and generally
 set to to match the core compatible processor type, i.e. i386.