diff --git a/ChangeLog.txt b/ChangeLog.txt
index 453ffbc7e5..cab232a962 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -10,6 +10,10 @@
      * Change, ! Fix, % Optimization, + Addition, - Removal, ; Comment
  */
 
+2017-04-26 14:11 UTC+0200 Przemyslaw Czerpak (druzus/at/poczta.onet.pl)
+  * src/harbour.def
+    ! added missing hb_itemPutNil()
+
 2017-04-25 17:45 UTC+0200 Aleksander Czajczynski (hb fki.pl)
   * src/harbour.def
     ! add hb_rand*() functions, fixing hbtip regression (#154) after
diff --git a/src/harbour.def b/src/harbour.def
index 40401f3849..c061e27a09 100644
--- a/src/harbour.def
+++ b/src/harbour.def
@@ -2821,6 +2821,7 @@ hb_itemPutNLLLen
 hb_itemPutNLLen
 hb_itemPutNLen
 hb_itemPutNS
+hb_itemPutNil
 hb_itemPutNumType
 hb_itemPutPtr
 hb_itemPutPtrGC