diff --git a/vectorstores/weaviate/weaviate.go b/vectorstores/weaviate/weaviate.go
index d9f585edb..6245e7629 100644
--- a/vectorstores/weaviate/weaviate.go
+++ b/vectorstores/weaviate/weaviate.go
@@ -72,7 +72,7 @@ func New(opts ...Option) (Store, error) {
 	}
 	headers := make(map[string]string)
 	if s.apiKey != nil {
-		headers["Authorization"] = fmt.Sprintf("Authorization: Bearer %s", *s.apiKey)
+		headers["Authorization"] = fmt.Sprintf("Bearer %s", *s.apiKey)
 	}
 	s.client = weaviate.New(weaviate.Config{
 		Scheme:           s.scheme,