diff --git a/bouquins/db.go b/bouquins/db.go
index e11bd3d..3d7c34a 100644
--- a/bouquins/db.go
+++ b/bouquins/db.go
@@ -177,7 +177,7 @@ func (app *Bouquins) queryBooksTags(limit, offset int, sort, order string) (map[
 		}
 		bookTags := tags[book]
 		if bookTags == nil {
-			bookTags = make([]string, 1)
+			bookTags = make([]string, 0)
 			tags[book] = bookTags
 		}
 		tags[book] = append(bookTags, tag)