diff --git a/glib/gdatetime.c b/glib/gdatetime.c
index c7972b445..baf0c5ff7 100644
--- a/glib/gdatetime.c
+++ b/glib/gdatetime.c
@@ -357,6 +357,8 @@ g_date_time_add_dmy (GDateTime *datetime,
   gint step, i;
   const guint16 *max_days;
 
+  __year += years;
+
   /* subtract one day for leap years */
   if (GREGORIAN_LEAP (__year) && __month == 2)
     {
@@ -364,8 +366,6 @@ g_date_time_add_dmy (GDateTime *datetime,
         __day -= 1;
     }
 
-  __year += years;
-
   /* add months */
   step = months > 0 ? 1 : -1;
   for (i = 0; i < ABS (months); i++)