diff --git a/src/flash/nand/tcl.c b/src/flash/nand/tcl.c
index 638937790..c52c347fd 100644
--- a/src/flash/nand/tcl.c
+++ b/src/flash/nand/tcl.c
@@ -196,7 +196,7 @@ COMMAND_HANDLER(handle_nand_erase_command)
 	{
 		command_print(CMD_CTX, "erased blocks %lu to %lu "
 				"on NAND flash device #%s '%s'",
-				offset, offset + length,
+				offset, offset + length - 1,
 				CMD_ARGV[0], p->device->name);
 	}