diff --git a/ChangeLog b/ChangeLog
index b6484efb..757ce575 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,6 @@
 2014-05-16  Benno Schulenberg  <bensberg@justemail.net>
 	* src/text.c, src/winio.c: Remove some more double spaces.
+	* doc/syntax/patch.nanorc: Show trailing whitespace on added lines.
 
 2014-05-16  David Lawrence Ramsey  <pooka109@gmail.com>
 	* src/color.c, src/cut.c, src/text.c: Tweak some whitespace.
diff --git a/doc/syntax/patch.nanorc b/doc/syntax/patch.nanorc
index 5f101186..f5c1dd59 100644
--- a/doc/syntax/patch.nanorc
+++ b/doc/syntax/patch.nanorc
@@ -1,11 +1,21 @@
 ## Here is an example for patch files.
-##
+
 syntax "patch" "\.(patch|diff)$"
 magic "diff output text"
+
+# Added lines.
 color brightgreen "^\+.*"
-color green "^\+\+\+.*"
+# Show trailing whitespace only on added lines.
+color ,green "[[:space:]]+$"
+# Context lines.
 color brightblue "^ .*"
+# Deleted lines.
 color brightred "^-.*"
+
+# File names and dates.
 color red "^---.*"
+color green "^\+\+\+.*"
+# Line numbers.
 color brightyellow "^@@.*"
+# Header lines.
 color magenta "^diff.*"