diff --git a/library/apt b/library/apt
index 6729100632..7a8894ce68 100644
--- a/library/apt
+++ b/library/apt
@@ -69,7 +69,7 @@ options:
     choices: [ "yes", "no" ]
   upgrade:
     description:
-      - If yes, performs an apt-get upgrade. If dist, performs an apt-get dist-upgrade. Note: This does not upgrade a specific package, use state=latest for that.
+      - 'If yes, performs an apt-get upgrade. If dist, performs an apt-get dist-upgrade. Note: This does not upgrade a specific package, use state=latest for that.'
     version_added: "1.1"
     required: false
     default: no