diff --git a/lib/rules/valid-properties.js b/lib/rules/valid-properties.js
index ea20bcd..17047de 100644
--- a/lib/rules/valid-properties.js
+++ b/lib/rules/valid-properties.js
@@ -82,7 +82,10 @@ function validProp(node, context, allowKeys) {
         }
       })
     }
-  } else if (node.value.type !== 'Identifier') {
+  } else if (
+    node.value.type !== 'Identifier' &&
+    node.value.type !== 'TSAsExpression'
+  ) {
     return context.report({
       node,
       message: "Invalid value for '{{propName}}'.",