diff --git a/gui/rpk-gui/src/lib/crud/providers/jsonschema-provider.tsx b/gui/rpk-gui/src/lib/crud/providers/jsonschema-provider.tsx
index 5b74ad0..17cf378 100644
--- a/gui/rpk-gui/src/lib/crud/providers/jsonschema-provider.tsx
+++ b/gui/rpk-gui/src/lib/crud/providers/jsonschema-provider.tsx
@@ -59,10 +59,12 @@ function convertCamelToSnake(str: string): string {
 }
 
 function buildResource(rawSchemas: RJSFSchema, resourceName: string) {
-  let resource;
+  if (rawSchemas.components.schemas[resourceName] === undefined) {
+    throw new Error(`Resource "${resourceName}" not found in schema.`);
+  }
 
   const shortResourceName = convertCamelToSnake(resourceName.replace(/(-Input|Create|Update)$/g, ""));
-  resource = structuredClone(rawSchemas.components.schemas[resourceName]);
+  let resource = structuredClone(rawSchemas.components.schemas[resourceName]);
   resource.components = { schemas: {} };
   for (let prop_name in resource.properties) {
     let prop = resource.properties[prop_name];