diff --git a/meta/conf/machine/include/mips/tune-octeon.inc b/meta/conf/machine/include/mips/tune-octeon.inc
index 0004190c34..96df9b1a60 100644
--- a/meta/conf/machine/include/mips/tune-octeon.inc
+++ b/meta/conf/machine/include/mips/tune-octeon.inc
@@ -1,4 +1,4 @@
-DEFAULTTUNE ?="octeon2"
+DEFAULTTUNE ?= "octeon2"
 
 require conf/machine/include/mips/tune-mips64.inc