diff --git a/packages/core/src/getters/scalar.ts b/packages/core/src/getters/scalar.ts
index 38585af37..1d217ab15 100644
--- a/packages/core/src/getters/scalar.ts
+++ b/packages/core/src/getters/scalar.ts
@@ -28,7 +28,10 @@ export const getScalar = ({
   switch (item.type) {
     case 'number':
     case 'integer': {
-      let value = item.format === 'int64' ? 'bigint' : 'number';
+      let value =
+        item.format === 'int64' && context.override.useBigInt
+          ? 'bigint'
+          : 'number';
       let isEnum = false;
 
       if (item.enum) {
diff --git a/packages/core/src/types.ts b/packages/core/src/types.ts
index 9cb452035..df33b9d4d 100644
--- a/packages/core/src/types.ts
+++ b/packages/core/src/types.ts
@@ -100,6 +100,7 @@ export type NormalizedOverrideOutput = {
   useDates?: boolean;
   useTypeOverInterfaces?: boolean;
   useDeprecatedOperations?: boolean;
+  useBigInt?: boolean;
 };
 
 export type NormalizedMutator = {
@@ -278,6 +279,7 @@ export type OverrideOutput = {
   useDates?: boolean;
   useTypeOverInterfaces?: boolean;
   useDeprecatedOperations?: boolean;
+  useBigInt?: boolean;
 };
 
 export type OverrideOutputContentType = {