diff --git a/reserve.inc b/reserve.inc
index a90f132..fb15c44 100644
--- a/reserve.inc
+++ b/reserve.inc
@@ -277,7 +277,7 @@ function reserve_hours($option = NULL) {
     }
 
     // convert display to 24:00 format if required
-    if ($config->get('reserve_hour_format')) {
+    if ($config->get('hour_format') == 1) {
       $display = date('H:i', strtotime($display));
     }
 
@@ -1123,4 +1123,4 @@ function reserve_get_ebundle_category_field($ebundle) {
       return $field;
     }
   }
-}
\ No newline at end of file
+}