diff --git a/includes/class-wc-checkout.php b/includes/class-wc-checkout.php
index de68b042ef1..4efb4433a4b 100644
--- a/includes/class-wc-checkout.php
+++ b/includes/class-wc-checkout.php
@@ -752,7 +752,7 @@ class WC_Checkout {
 
 			$value = apply_filters( 'woocommerce_checkout_get_value', null, $input );
 
-			if ( $value )
+			if ( $value !== null )
 				return $value;
 
 			if ( is_user_logged_in() ) {