diff --git a/src/server/router/plural.js b/src/server/router/plural.js
index b949465..0c8b117 100644
--- a/src/server/router/plural.js
+++ b/src/server/router/plural.js
@@ -120,7 +120,7 @@ module.exports = (db, name) => {
               const path = key.replace(/(_lte|_gte|_ne|_like)$/, '')
               const elementValue = _.get(element, path)
 
-              if (elementValue == null) {
+              if (elementValue === undefined) {
                 return
               }