diff --git a/doc/nanorc.sample b/doc/nanorc.sample
index cad0a6ac..aed9e3c1 100644
--- a/doc/nanorc.sample
+++ b/doc/nanorc.sample
@@ -291,7 +291,7 @@
 # syntax "python" "\.py$"
 # icolor brightblue "def [A-Z_0-9]+"
 # color brightcyan "\<(and|assert|break|class|continue|def|del|elif|else|except|exec|finally|for|from|global|if|import|in|is|lambda|map|not|or|pass|print|raise|return|try|while)\>"
-# color brightgreen "(["']).*[^\\]\1" "(["']){3}.*[^\\]\1"
+# color brightgreen "["'].*[^\\]["']" "["']{3}.*[^\\]["']{3}"
 # color brightgreen start=""""[^"]" end=""""" start="'''[^']" end="'''"
 # color brightred "#.*$"