diff --git a/doc-src/content/examples/compass/css3/columns/stylesheet.sass b/doc-src/content/examples/compass/css3/columns/stylesheet.sass
index eff8f0e6..9fc6b4ee 100644
--- a/doc-src/content/examples/compass/css3/columns/stylesheet.sass
+++ b/doc-src/content/examples/compass/css3/columns/stylesheet.sass
@@ -12,6 +12,6 @@
 
 #fourColumnWithRule
 	+column-count(4)
-	+column-rule(1px, solid, red)
+	+column-rule(1px, "solid", red)
 	:width 300px
 	:margin-bottom 20px