diff --git a/contrib/search_api_facetapi/plugins/facetapi/adapter.inc b/contrib/search_api_facetapi/plugins/facetapi/adapter.inc
index 26fbbc5..417b57b 100644
--- a/contrib/search_api_facetapi/plugins/facetapi/adapter.inc
+++ b/contrib/search_api_facetapi/plugins/facetapi/adapter.inc
@@ -279,6 +279,9 @@ class SearchApiFacetapiAdapter extends FacetapiAdapter {
         '#default_value' => isset($options['date_granularity']) ? $options['date_granularity'] : FACETAPI_DATE_MINUTE,
       );
 
+      // Date facets don't support the "OR" operator (for now).
+      $form['global']['operator']['#access'] = FALSE;
+
       $default_value = FACETAPI_DATE_YEAR;
       if (isset($options['date_granularity_min'])) {
         $default_value = $options['date_granularity_min'];
diff --git a/contrib/search_api_facetapi/plugins/facetapi/query_type_date.inc b/contrib/search_api_facetapi/plugins/facetapi/query_type_date.inc
index b57117e..565493d 100644
--- a/contrib/search_api_facetapi/plugins/facetapi/query_type_date.inc
+++ b/contrib/search_api_facetapi/plugins/facetapi/query_type_date.inc
@@ -311,9 +311,8 @@ class SearchApiFacetapiDate extends SearchApiFacetapiTerm implements FacetapiQue
           FACETAPI_DATE_MINUTE => 2,
           FACETAPI_DATE_SECOND => 1,
         );
-        // Gets gap numbers for both the gap, minimum and maximum gap,
-        // checks if the gap is within the limit
-        // set by the $granularity parameters.
+        // Gets gap numbers for both the gap, minimum and maximum gap, checks if
+        // the gap is within the limit set by the $granularity parameters.
         if ($gap_numbers[$granularity] < $gap_numbers[$max_granularity]) {
           $granularity = $max_granularity;
         }