diff --git a/lib/scss_lint/linter/property_format_linter.rb b/lib/scss_lint/linter/property_format_linter.rb
index <HASH>..<HASH> 100644
--- a/lib/scss_lint/linter/property_format_linter.rb
+++ b/lib/scss_lint/linter/property_format_linter.rb
@@ -17,7 +17,8 @@ module SCSSLint
 
       def description
         'Property declarations should always be on one line of the form ' <<
-        '`name: value;` or `name: [value] {`'
+        '`name: value;` or `name: [value] {` ' <<
+        '(are you missing a trailing semi-colon?)'
       end
 
     private
Improve message for property format linter

Changes the lint error description for the property format linter to
suggest that the user is missing a semi-colon, as that usually is the
reason they are seeing the lint, and the more general language of the
error can be confusing the read at times.

Change-Id: I<I>dcb<I>ba<I>e<I>de<I>ab<I>d8bd<I>
Reviewed-on: <URL>