diff --git a/drivers/target/target_core_cdb.c b/drivers/target/target_core_cdb.c
index 5c60d0a97a50402a582014f5a63274ff64d3d133..2f2235edefffce7f99873b0bd4ece1ce87ebe6e7 100644
--- a/drivers/target/target_core_cdb.c
+++ b/drivers/target/target_core_cdb.c
@@ -94,6 +94,18 @@ target_emulate_inquiry_std(struct se_cmd *cmd)
 	}
 	buf[2] = dev->transport->get_device_rev(dev);
 
+	/*
+	 * NORMACA and HISUP = 0, RESPONSE DATA FORMAT = 2
+	 *
+	 * SPC4 says:
+	 *   A RESPONSE DATA FORMAT field set to 2h indicates that the
+	 *   standard INQUIRY data is in the format defined in this
+	 *   standard. Response data format values less than 2h are
+	 *   obsolete. Response data format values greater than 2h are
+	 *   reserved.
+	 */
+	buf[3] = 2;
+
 	/*
 	 * Enable SCCS and TPGS fields for Emulated ALUA
 	 */