diff --git a/ChangeLog b/ChangeLog
index 02e131a5..3eccb524 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2011-09-15  Joerg Wunsch <j.gnu@uriah.heep.sax.de>
+
+	* avrftdi.c: Remove stray printf()s by fprintf(stderr)
+	* usbtiny.c: (Ditto.)
+
 2011-09-15  Joerg Wunsch <j.gnu@uriah.heep.sax.de>
 
 	* main.c: Restrict the cyclecounter readout to those cases where
diff --git a/avrftdi.c b/avrftdi.c
index cd9bdc7d..653a46a1 100644
--- a/avrftdi.c
+++ b/avrftdi.c
@@ -145,7 +145,8 @@ static int add_pin(PROGRAMMER *pgm, int pinfunc)
 	else if(TYPE_2232H == ftype)
 		mlim=15;
 	else{
-		printf("Unknown type %d (0x%x)\n",ftype,ftype);
+		fprintf(stderr, "Unknown type %d (0x%x)\n",
+			ftype, ftype);
 		mlim=15;
 	}
 	/* check that the pin number is in range */
@@ -205,8 +206,8 @@ static int add_pins(PROGRAMMER *pgm, int pinfunc)
 	else if (TYPE_2232H == ftype)
 		mlim = 16;
 	else{
-		printf("Unknown type %d (0x%x)\n",
-		       ftype, ftype);
+		fprintf(stderr, "Unknown type %d (0x%x)\n",
+			ftype, ftype);
 		mlim = 16;
 	}
 	if (mask >= 1 << mlim) {
@@ -262,7 +263,7 @@ static int write_flush(void)
 #endif
 
 	if (verbose > 3)
-		printf("FTDI LOG: %02x %02x %02x %02x %02x %02x\n",
+		fprintf(stderr, "FTDI LOG: %02x %02x %02x %02x %02x %02x\n",
 		       buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
 
 	/* we need to flush here, because set_pin is used as reset.
diff --git a/usbtiny.c b/usbtiny.c
index afc7fe29..7fe8c857 100644
--- a/usbtiny.c
+++ b/usbtiny.c
@@ -226,7 +226,9 @@ static	int	usbtiny_open(PROGRAMMER* pgm, char* name)
       if (dev->descriptor.idVendor == USBTINY_VENDOR
 	  && dev->descriptor.idProduct == USBTINY_PRODUCT ) {   // found match?
     if(verbose)
-      printf("avrdude: usbdev_open(): Found USBtinyISP, bus:device: %s:%s\n", bus->dirname, dev->filename);
+      fprintf(stderr,
+	      "%s: usbdev_open(): Found USBtinyISP, bus:device: %s:%s\n",
+	      progname, bus->dirname, dev->filename);
     // if -P was given, match device by device name and bus name
     if(name != NULL &&
       (NULL == dev_name ||