diff --git a/nodejs/src/config/primitivesMapping.ts b/nodejs/src/config/primitivesMapping.ts
index b4e62bf..03cb0da 100644
--- a/nodejs/src/config/primitivesMapping.ts
+++ b/nodejs/src/config/primitivesMapping.ts
@@ -6,6 +6,7 @@ const primitivesMapping: PrimitiveTypesMapping = {
     Float: "float",
     Boolean: "bool",
     ID: "string",
+    BigInt: "int"
   };
 
-export { PrimitiveTypesMapping, primitivesMapping };
\ No newline at end of file
+export { PrimitiveTypesMapping, primitivesMapping };