diff --git a/make-stds.texi b/make-stds.texi
index e7c9cf98..3f4b4ca6 100644
--- a/make-stds.texi
+++ b/make-stds.texi
@@ -239,6 +239,9 @@ Put @code{CFLAGS} last in the compilation command, after other variables
 containing compiler options, so the user can use @code{CFLAGS} to
 override the others.
 
+@code{CFLAGS} should be used in every invocation of the C compiler,
+both those which do compilation and those which do linking.
+
 Every Makefile should define the variable @code{INSTALL}, which is the
 basic command for installing a file into the system.