diff --git a/src/entities/RequestHandler.ts b/src/entities/RequestHandler.ts
index 9ec4bbf..9948aef 100644
--- a/src/entities/RequestHandler.ts
+++ b/src/entities/RequestHandler.ts
@@ -104,7 +104,7 @@ export class RequestHandler {
 		const param = this.getPostParam(name);
 
 		if(param == undefined) {
-			if(!fallback)
+			if(fallback == undefined)
 				this.error(400, "Missing integer '"+name+"' in the request!");
 			return fallback;
 		}