diff --git a/ChangeLog b/ChangeLog
index b4fa810..7c65ad6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -9,6 +9,10 @@
     * src/gtk-rot-ctrl.c
     Fixes bug 3271573: Track button in rotator controller has no effect.
 
+    * ChangeLog
+    * src/Makefile.am
+    Eliminates DATADIR from defines to avoid mingw32 problem with winsock.
+
 
 2011-08-04 Charles Suprin <hamaa1vs at gmail.com>
 
diff --git a/src/Makefile.am b/src/Makefile.am
index 1f27745..d283bac 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -4,7 +4,6 @@ SUBDIRS = sgpsdp
 
 INCLUDES = \
 	@PACKAGE_CFLAGS@ -I.. \
-	-DDATADIR=\""$(datadir)"\" \
 	-DPACKAGE_DATA_DIR=\""$(datadir)/gpredict"\" \
 	-DPACKAGE_PIXMAPS_DIR=\""$(datadir)/pixmaps/gpredict"\" \
 	-DPACKAGE_LOCALE_DIR=\""$(prefix)/share/locale"\"