diff --git a/urjtag/ChangeLog b/urjtag/ChangeLog
index a6e951eb..d211b101 100644
--- a/urjtag/ChangeLog
+++ b/urjtag/ChangeLog
@@ -44,6 +44,9 @@
   * data/analog/bf548/bf548: Add pin aliases for ADDR4..ADDR24 to match style
     of all other Blackfin parts.
 
+  * src/bus/generic_bus.c, src/bus/generic_bus.h (urj_bus_generic_attach_sig):
+    Constify signal id name.
+
 2010-08-30  Mike Frysinger  <vapier@gentoo.org>
 
   * configure.ac: Clean up libusb detection to prefer 1.0 over 0.1, and accept
diff --git a/urjtag/src/bus/generic_bus.c b/urjtag/src/bus/generic_bus.c
index c04afd0b..bb010d3a 100644
--- a/urjtag/src/bus/generic_bus.c
+++ b/urjtag/src/bus/generic_bus.c
@@ -34,7 +34,7 @@
 
 int
 urj_bus_generic_attach_sig (urj_part_t *part, urj_part_signal_t **sig,
-                            char *id)
+                            const char *id)
 {
     *sig = urj_part_find_signal (part, id);
     if (!*sig)
diff --git a/urjtag/src/bus/generic_bus.h b/urjtag/src/bus/generic_bus.h
index 37faccbb..5f6409a5 100644
--- a/urjtag/src/bus/generic_bus.h
+++ b/urjtag/src/bus/generic_bus.h
@@ -30,7 +30,7 @@
 #include <urjtag/bus.h>
 
 int urj_bus_generic_attach_sig (urj_part_t *part, urj_part_signal_t **sig,
-                                char *id);
+                                const char *id);
 
 urj_bus_t *urj_bus_generic_new (urj_chain_t *chain,
                                 const urj_bus_driver_t *driver,