diff --git a/handbook/extendpoky.xml b/handbook/extendpoky.xml
index 18a7b66647..d6f183acc6 100644
--- a/handbook/extendpoky.xml
+++ b/handbook/extendpoky.xml
@@ -469,7 +469,7 @@ bitbake poky-image-sato
suitable defconfig file in a location similar to that used by other
machine's defconfig files in a given kernel, possibly listing it in
the SRC_URI and adding the machine to the expression in
- COMPATIBLE_MACHINES
+ COMPATIBLE_MACHINE
.
diff --git a/handbook/ref-variables.xml b/handbook/ref-variables.xml
index 437e8240f6..a3590e1072 100644
--- a/handbook/ref-variables.xml
+++ b/handbook/ref-variables.xml
@@ -97,7 +97,7 @@
- COMPATIBLE_MACHINES
+ COMPATIBLE_MACHINEA regular expression which evalutates to match the machines the recipe
works with. It stops recipes being run on machines they're incompatible with