diff --git a/src/js/bootstrap-datetimepicker.js b/src/js/bootstrap-datetimepicker.js
index 591bf42a5..69707a190 100644
--- a/src/js/bootstrap-datetimepicker.js
+++ b/src/js/bootstrap-datetimepicker.js
@@ -181,7 +181,7 @@
     },
 
     setValue: function(newDate) {
-      if (!newDate) {
+      if (newDate === null) {
         this._unset = true;
       } else {
         this._unset = false;