diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index a6a73aa..697979c 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -230,7 +230,7 @@ MODULE_PARM_DESC(bbt,         "0 OOB, 1 BBT with marker
in OOB, 2 BBT with marker in d
 #define STATE_ADDR_ZERO        0x00000040 /* one byte zero address was
accepted */
 #define STATE_ADDR_MASK        0x00000070 /* address states mask */

-/* Durind data input/output the simulator is in these states */
+/* During data input/output the simulator is in these states */
 #define STATE_DATAIN           0x00000100 /* waiting for data input */