diff --git a/jtag/ChangeLog b/jtag/ChangeLog
index b7f99f06..556c6058 100644
--- a/jtag/ChangeLog
+++ b/jtag/ChangeLog
@@ -1,5 +1,9 @@
 2008-12-01  Arnim Laeuger  <arniml@users.sourceforge.net>
 
+   * src/bus/prototype.c (prototype_bus_new): consider amode parameter properly
+     when specified on the command line. pervious version didn't set ASHIFT in
+     this case.
+
    * src/flash/amd.c (amd_flash_print_info): added Spansion S92GL chips
 
 2008-11-16  Kolja Waschk  <kawk>
diff --git a/jtag/src/bus/prototype.c b/jtag/src/bus/prototype.c
index 66e70b96..e5a6755d 100644
--- a/jtag/src/bus/prototype.c
+++ b/jtag/src/bus/prototype.c
@@ -236,8 +236,8 @@ prototype_bus_new( chain_t *chain, const bus_driver_t *driver, char *cmd_params[
 				nbytes >>= 1;
 				ashift++;
 			}
-			ASHIFT = ashift;
 		}
+		ASHIFT = ashift;
 
 	} else {
 		printf( _("parameters dlsb=<signal> and/or dmsb=<signal> are not defined\n") );