diff --git a/etc/defaults/make.conf b/etc/defaults/make.conf
index b5b2cddf0ddb..15b2fdac4550 100644
--- a/etc/defaults/make.conf
+++ b/etc/defaults/make.conf
@@ -51,6 +51,7 @@
 #NO_OPENSSL=	true	# do not build OpenSSL (implies NO_OPENSSH)
 #NO_SENDMAIL=	true	# do not build sendmail and related programs
 #NO_SHAREDOCS=	true	# do not build the 4.4BSD legacy docs
+#NO_TCSH=	true	# do not build and install /bin/csh (which is tcsh)
 #NO_X=		true	# do not compile in XWindows support (e.g. doscmd)
 #NOCRYPT=	true	# do not build any crypto code
 #NODESCRYPTLINKS=true	# do not replace libcrypt -> libscrypt links
diff --git a/share/examples/etc/make.conf b/share/examples/etc/make.conf
index b5b2cddf0ddb..15b2fdac4550 100644
--- a/share/examples/etc/make.conf
+++ b/share/examples/etc/make.conf
@@ -51,6 +51,7 @@
 #NO_OPENSSL=	true	# do not build OpenSSL (implies NO_OPENSSH)
 #NO_SENDMAIL=	true	# do not build sendmail and related programs
 #NO_SHAREDOCS=	true	# do not build the 4.4BSD legacy docs
+#NO_TCSH=	true	# do not build and install /bin/csh (which is tcsh)
 #NO_X=		true	# do not compile in XWindows support (e.g. doscmd)
 #NOCRYPT=	true	# do not build any crypto code
 #NODESCRYPTLINKS=true	# do not replace libcrypt -> libscrypt links