diff --git a/DESCRIPTION b/DESCRIPTION
index 2346301..d454886 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -26,7 +26,7 @@ RoxygenNote: 6.1.0
 Suggests: 
     covr,
     microbenchmark,
-    ggplot2
+    ggplot2,
     scales,
     testthat,
     viridisLite