diff --git a/includes/locations/abstract-acf-location.php b/includes/locations/abstract-acf-location.php
index 10b09bc5..8b17de9f 100644
--- a/includes/locations/abstract-acf-location.php
+++ b/includes/locations/abstract-acf-location.php
@@ -180,6 +180,10 @@ public function match( $rule, $screen, $field_group ) {
 		 * @return  boolean
 		 */
 		public function compare_to_rule( $value, $rule ) {
+			if ( !isset($rule['value']) ) {
+				return false;
+			}
+
 			$result = ( $value == $rule['value'] );
 
 			// Allow "all" to match any value.