diff --git a/jtag/ChangeLog b/jtag/ChangeLog
index 82c7fcb0..4e4f24fe 100644
--- a/jtag/ChangeLog
+++ b/jtag/ChangeLog
@@ -1,6 +1,7 @@
 2008-04-09  Kolja Waschk <kawk>
 
    * src/tap/cable/usbblaster.c: [ 1934843 ] Fix for USBBLASTER (U.Bonnes)
+   * src/jtag.c: [ 1933141 ] Don't add duplicate history lines (U.Bonnes)
 
 2008-04-03  Kolja Waschk <kawk>
 
diff --git a/jtag/src/jtag.c b/jtag/src/jtag.c
index 182901d8..656799cd 100644
--- a/jtag/src/jtag.c
+++ b/jtag/src/jtag.c
@@ -193,8 +193,8 @@ jtag_readline_loop( chain_t *chain, const char *prompt )
 		}
 
 #ifdef HAVE_READLINE_HISTORY
-		/* Check if we actually got something */
-		if (strlen( line ))
+		/* Check if we actually got something , Don't add duplicate lines*/
+		if (strlen( line ) &&( !history_length ||strcmp(line,history_get(history_length)->line)))
 			add_history( line );
 #endif
 	}