diff --git a/action.yml b/action.yml
index 2742a53..4fa187b 100644
--- a/action.yml
+++ b/action.yml
@@ -65,7 +65,7 @@ inputs:
     description: 'Saturation used by the color range feature. Defaults to 100%.'
     required: false
   colorRangeLightness:
-    description: 'Lightness used by the color range feature. Defaults to 40%.
+    description: 'Lightness used by the color range feature. Defaults to 40%.'
     required: false
 runs:
   using: 'node12'