diff --git a/src/gcal-utils.h b/src/gcal-utils.h
index 07bbce1b..484b3aef 100644
--- a/src/gcal-utils.h
+++ b/src/gcal-utils.h
@@ -31,6 +31,8 @@
 #define MINUTES_PER_DAY 1440
 #define MAX_MINUTES     (7 * MINUTES_PER_DAY)
 
+#define gcal_clear_datetime(dt) g_clear_pointer (dt, g_date_time_unref)
+
 typedef enum
 {
   GCAL_WINDOW_VIEW_DAY,