diff --git a/debug.c b/debug.c
deleted file mode 100644
index 4f3215b5..00000000
--- a/debug.c
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * This file is part of the sigrok project.
- *
- * Copyright (C) 2010 Bert Vermeulen <bert@biot.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdio.h>
-#include <sigrok.h>
-
-void hexdump(unsigned char *address, int length)
-{
-	int i;
-
-	for (i = 0; i < length; i++) {
-		if ((i & 0x0f) == 0) {
-			if (i)
-				printf("\n");
-			printf("%.4x   ", i);
-		}
-		printf("%.2x ", address[i]);
-	}
-	printf("\n");
-}
diff --git a/sigrok-proto.h b/sigrok-proto.h
index 0666d60c..3ac30dfa 100644
--- a/sigrok-proto.h
+++ b/sigrok-proto.h
@@ -32,10 +32,6 @@ int datastore_destroy(struct datastore *ds);
 void datastore_put(struct datastore *ds, void *data, unsigned int length,
 		   int in_unitsize, int *probelist);
 
-/*--- debug.c ---------------------------------------------------------------*/
-
-void hexdump(unsigned char *address, int length);
-
 /*--- device.c --------------------------------------------------------------*/
 
 void device_scan(void);