diff --git a/urjtag/ChangeLog b/urjtag/ChangeLog
index 7cb2f093..648b2dad 100644
--- a/urjtag/ChangeLog
+++ b/urjtag/ChangeLog
@@ -1,3 +1,7 @@
+2010-06-22  Mike Frysinger  <vapier@gentoo.org>
+
+  * src/tap/usbconn/libftdi.c (usbconn_ftdi_flush): Fix gcc printf warning.
+
 2010-06-21  Mike Frysinger  <vapier@gentoo.org>
 
   * src/bus/bf518f_ezbrd.c (urj_bus_bf51x_bus): Fix copy & paste typo in name.
diff --git a/urjtag/src/tap/usbconn/libftdi.c b/urjtag/src/tap/usbconn/libftdi.c
index 3e1f9b01..a23de05a 100644
--- a/urjtag/src/tap/usbconn/libftdi.c
+++ b/urjtag/src/tap/usbconn/libftdi.c
@@ -122,7 +122,7 @@ usbconn_ftdi_flush (ftdi_param_t *p)
 
     if ((xferred = ftdi_write_data (p->fc, p->send_buf, p->send_buffered)) < 0)
     {
-        urj_error_set (URJ_ERROR_FTD, ftdi_get_error_string (p->fc));
+        urj_error_set (URJ_ERROR_FTD, "%s", ftdi_get_error_string (p->fc));
         return -1;
     }