diff --git a/subgraph-js/src/schema-helper/buildSchemaFromSDL.ts b/subgraph-js/src/schema-helper/buildSchemaFromSDL.ts
index a749d23de..898c3d6ce 100644
--- a/subgraph-js/src/schema-helper/buildSchemaFromSDL.ts
+++ b/subgraph-js/src/schema-helper/buildSchemaFromSDL.ts
@@ -19,7 +19,6 @@ import {
   isScalarType,
   isEnumType,
   GraphQLEnumValueConfig,
-  ConstDirectiveNode,
   ASTNode,
   StringValueNode,
 } from 'graphql';