diff --git a/src/collections/serialize/index.ts b/src/collections/serialize/index.ts
index bd1a834f..815c8b50 100644
--- a/src/collections/serialize/index.ts
+++ b/src/collections/serialize/index.ts
@@ -1082,7 +1082,7 @@ export class Serialize {
       await Serialize.hybridVector(args);
     return Hybrid.fromPartial({
       query: args.query,
-      alpha: args.alpha ? args.alpha : 0.5,
+      alpha: args.alpha !== undefined ? args.alpha : 0.5,
       properties: this.bm25QueryProperties(args.queryProperties),
       vectorBytes: vectorBytes,
       vectorDistance: args.maxVectorDistance,