diff --git a/docs/build.rst b/docs/build.rst
index 7f943b1c8..fbbedb809 100644
--- a/docs/build.rst
+++ b/docs/build.rst
@@ -214,7 +214,7 @@ support for cross compilation. Basically, run::
 
     make prepare-for-cross-compile
 
-Then setup the cross compile environment (CC, CFLAGS, etc.) and run::
+Then setup the cross compile environment (CC, CFLAGS, PATH, etc.) and run::
 
     make cross-compile