diff --git a/docs/pages/api-docs/card.json b/docs/pages/api-docs/card.json
index b3f273872381ac..cbf39f9857a4a5 100644
--- a/docs/pages/api-docs/card.json
+++ b/docs/pages/api-docs/card.json
@@ -3,7 +3,14 @@
     "children": { "type": { "name": "node" } },
     "classes": { "type": { "name": "object" } },
     "raised": { "type": { "name": "custom", "description": "bool" }, "default": "false" },
-    "sx": { "type": { "name": "object" } }
+    "sx": { "type": { "name": "object" } },
+    "variant": {
+      "type": {
+        "name": "union",
+        "description": "'elevation'<br>&#124;&nbsp;'outlined'<br>&#124;&nbsp;string"
+      },
+      "default": "'elevation'"
+    }
   },
   "name": "Card",
   "styles": { "classes": ["root"], "globalClasses": {}, "name": "MuiCard" },