diff --git a/properties.schema b/properties.schema
index 3decea8a..162b2904 100644
--- a/properties.schema
+++ b/properties.schema
@@ -253,7 +253,7 @@
                     "_setCompletedWhenFailed": {
                       "type": "boolean",
                       "required": false,
-                      "default": false,
+                      "default": true,
                       "title": "Completed when failed",
                       "inputType": "Checkbox",
                       "validators": [],
diff --git a/schema/config.schema.json b/schema/config.schema.json
index fb626292..84393056 100644
--- a/schema/config.schema.json
+++ b/schema/config.schema.json
@@ -178,6 +178,12 @@
                     ""
                   ],
                   "_backboneForms": "Select"
+                },
+                "_setCompletedWhenFailed": {
+                  "type": "boolean",
+                  "title": "Completed when failed",
+                  "description": "If enabled, `cmi.completion_status` will be set to \"completed\" if the assessment is \"failed\". Only valid for SCORM 2004, where the logic for completion and success is separate.",
+                  "default": true
                 }
               }
             },