diff --git a/common-docs/teachertool/test/catalog-shared.json b/common-docs/teachertool/test/catalog-shared.json
index 449b6b55b1d2..95196242ba81 100644
--- a/common-docs/teachertool/test/catalog-shared.json
+++ b/common-docs/teachertool/test/catalog-shared.json
@@ -24,7 +24,7 @@
             "params": [
                 {
                     "name": "block",
-                    "type": "string",
+                    "type": "block",
                     "paths": ["checks[0].blockCounts[0].blockId"]
                 },
                 {