diff --git a/harbour/ChangeLog b/harbour/ChangeLog
index 594b9c4c5b..61ea735427 100644
--- a/harbour/ChangeLog
+++ b/harbour/ChangeLog
@@ -3,6 +3,8 @@
      * hb_gtScroll() - call gtScroll if WIN_GTAPI
    * source\rtl\gt\gtapi.c
      + gtScroll() Much improved scroll speed -not up to Clipper yet though.
+   * include\gtapi.h
+     + declaration for gtScroll()
 
 19990731-23:20 GMT+1 Bruno Cantero <bruno@issnet.net>
    * source/rdd/dbcmd.c
diff --git a/harbour/include/gtapi.h b/harbour/include/gtapi.h
index 0fbf54ac1a..9888c1b68e 100644
--- a/harbour/include/gtapi.h
+++ b/harbour/include/gtapi.h
@@ -114,6 +114,7 @@ char gtGetScreenHeight(void);
 void gtSetPos(char cRow, char cCol);
 char gtCol(void);
 char gtRow(void);
+void gtScroll(char cTop, char cLeft, char cBottom, char cRight, char attribute, char vert, char horiz);
 void gtSetCursorStyle(int style);
 int  gtGetCursorStyle(void);
 void gtPuts(char cRow, char cCol, char attr, char *str, int len);