diff --git a/ChangeLog.txt b/ChangeLog.txt
index b313d13922..5352aedda6 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -10,6 +10,11 @@
      * Change, ! Fix, % Optimization, + Addition, - Removal, ; Comment
  */
 
+2015-12-14 16:26 UTC+0100 Przemyslaw Czerpak (druzus/at/poczta.onet.pl)
+  * config/os2/watcom.mk
+    + added -bd to Watcom C switches used to compile files for Harbour DLL.
+      It should fix the problem with OpenWatcom binaries using harbour.dll.
+
 2015-12-14 14:52 UTC+0100 Przemyslaw Czerpak (druzus/at/poczta.onet.pl)
   * src/dynlib/Makefile
     ! yet another fix for building harbour without MT support HB_MT=no
diff --git a/config/os2/watcom.mk b/config/os2/watcom.mk
index 19b156fa23..c8655a993c 100644
--- a/config/os2/watcom.mk
+++ b/config/os2/watcom.mk
@@ -2,7 +2,7 @@ OBJ_EXT := .obj
 LIB_PREF :=
 LIB_EXT := .lib
 
-HB_DYN_COPT := -DHB_DYNLIB
+HB_DYN_COPT := -DHB_DYNLIB -bd
 
 ifeq ($(HB_BUILD_MODE),cpp)
    CC := wpp386