diff --git a/src/lib/datocms-bypass.ts b/src/lib/datocms-bypass.ts
index 462cb3a..52b0f1e 100644
--- a/src/lib/datocms-bypass.ts
+++ b/src/lib/datocms-bypass.ts
@@ -8,7 +8,7 @@ import path from 'path';
 import { promises as fs } from 'fs';
 
 //-----misc helpers
-function datocmsDateToIng(date) {
+function datocmsDateToIng(date : string) : number {
 	
 	let dateInt = 0;