diff --git a/src/image/embedded.c b/src/image/embedded.c
index 97833130..0ce09783 100644
--- a/src/image/embedded.c
+++ b/src/image/embedded.c
@@ -4,7 +4,6 @@
  * data structure.
  */
 
-#include <stdio.h>
 #include <gpxe/image.h>
 #include <gpxe/malloc.h>
 #include <gpxe/uaccess.h>
@@ -25,8 +24,8 @@ struct image *embedded_image(void)
 	if ( reclaimed )
 		return NULL;	/* Already reclaimed */
 
-	printf("Embedded image: %d bytes at %p\n",
-	       eisize, _embedded_image_start);
+	DBG ( "Embedded image: %zd bytes at %p\n",
+	      eisize, _embedded_image_start );
 
 	image = alloc_image();
 	if (!image)
diff --git a/src/interface/pxe/pxe_tftp.c b/src/interface/pxe/pxe_tftp.c
index 976298a8..f5e76206 100644
--- a/src/interface/pxe/pxe_tftp.c
+++ b/src/interface/pxe/pxe_tftp.c
@@ -189,7 +189,7 @@ static int pxe_tftp_open ( uint32_t ipaddress, unsigned int port,
 	if ( blksize < TFTP_DEFAULT_BLKSIZE )
 		blksize = TFTP_DEFAULT_BLKSIZE;
 	snprintf ( uri_string, sizeof ( uri_string ),
-		   "tftp://%s:%d%s%s?blksize=%d",
+		   "tftp://%s:%d%s%s?blksize=%zd",
 		   inet_ntoa ( address ), ntohs ( port ),
 		   ( ( filename[0] == '/' ) ? "" : "/" ), filename, blksize );
 	DBG ( " %s", uri_string );