diff --git a/ChangeLog b/ChangeLog
index f76b2ce3..0f8e3aee 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,6 @@
+2015-04-18  Mark Oteiza  <mvoteiza@udel.edu>
+	* doc/syntax/{python,ruby,sh,tex}.nanorc: Add a linter definition.
+
 2015-04-17  Benno Schulenberg  <bensberg@justemail.net>
 	* src/text.c (do_alt_speller, do_linter, do_formatter): Distinguish
 	a failure to launch the linter from receiving zero parsable lines;
diff --git a/doc/syntax/python.nanorc b/doc/syntax/python.nanorc
index eb2b36e9..d86668c9 100644
--- a/doc/syntax/python.nanorc
+++ b/doc/syntax/python.nanorc
@@ -2,6 +2,7 @@
 
 syntax "python" "\.py$"
 header "^#!.*python[-0-9._]*"
+linter pyflakes
 
 # Function definitions.
 icolor brightblue "def [0-9A-Z_]+"
diff --git a/doc/syntax/ruby.nanorc b/doc/syntax/ruby.nanorc
index 298425f0..a7072216 100644
--- a/doc/syntax/ruby.nanorc
+++ b/doc/syntax/ruby.nanorc
@@ -2,6 +2,7 @@
 
 syntax "ruby" "\.rb$"
 header "^#!.*ruby[-0-9._]*"
+linter ruby -w -c
 
 # Reserved words.
 color yellow "\<(BEGIN|END|alias|and|begin|break|case|class|def|defined\?|do|else|elsif|end|ensure|false|for|if|in|module)\>"
diff --git a/doc/syntax/sh.nanorc b/doc/syntax/sh.nanorc
index 074e03ac..11eb9a45 100644
--- a/doc/syntax/sh.nanorc
+++ b/doc/syntax/sh.nanorc
@@ -3,6 +3,7 @@
 syntax "sh" "\.sh$"
 header "^#!.*((ba|da|k|pdk)?sh[-0-9_]*|openrc-run|runscript)"
 magic "(POSIX|Bourne.*) shell script text"
+linter dash -n
 
 icolor brightgreen "^[0-9A-Z_]+\(\)"
 color green "\<(break|case|continue|do|done|elif|else|esac|exit|fi|for|function|if|in|read|return|select|shift|then|time|until|while)\>"
diff --git a/doc/syntax/tex.nanorc b/doc/syntax/tex.nanorc
index 7fa417c4..a89cff90 100644
--- a/doc/syntax/tex.nanorc
+++ b/doc/syntax/tex.nanorc
@@ -1,6 +1,7 @@
 ## Here is a short example for TeX files.
 
 syntax "tex" "\.tex$"
+linter chktex -v0 -q -I
 
 icolor green "\\.|\\[A-Z]*"
 color magenta "[{}]"