diff --git a/make/directory.cfg b/make/directory.cfg
index 83ea0ecde3..61ce1703a2 100644
--- a/make/directory.cfg
+++ b/make/directory.cfg
@@ -1,6 +1,6 @@
 # make/directory.cfg
 #
-#   Make(1) configuration file include'd by all directory-level Makefile's.
+#   Make(1) configuration file included by all directory-level Makefiles.
 #
 #   See also make/main.cfg
 #
diff --git a/make/leaf.cfg b/make/leaf.cfg
index 7ce50efaff..ea68de0fed 100644
--- a/make/leaf.cfg
+++ b/make/leaf.cfg
@@ -1,6 +1,6 @@
 # make/leaf.cfg
 #
-#   Make(1) configuration file include'd by all leaf-node Makefiles
+#   Make(1) configuration file included by all leaf-node Makefiles
 #
 
 #
diff --git a/make/lib.cfg b/make/lib.cfg
index c4a2c679d5..4faf9d5956 100644
--- a/make/lib.cfg
+++ b/make/lib.cfg
@@ -1,6 +1,6 @@
 # make/lib.cfg
 #
-#   Make(1) configuration file include'd by all "library" Makefile
+#   Make(1) configuration file included by all "library" Makefiles
 #   Assumes $(LIB) is set to $(ARCH)/libfoo.a
 #
 
diff --git a/make/main.cfg b/make/main.cfg
index 285e1b9a84..c0e953affe 100644
--- a/make/main.cfg
+++ b/make/main.cfg
@@ -1,6 +1,6 @@
 # make/main.cfg
 #
-#   Make(1) configuration file include'd by all Makefile's
+#   Make(1) configuration file included by all Makefiles
 #
 
 #