diff --git a/hash/ibm5170.xml b/hash/ibm5170.xml
index ba0a47ddf3c..8b8818cd689 100644
--- a/hash/ibm5170.xml
+++ b/hash/ibm5170.xml
@@ -10365,7 +10365,7 @@ license:CC0
 		<part name="flop1" interface="floppy_3_5">
 			<feature name="part_number" value="0863-1"/>
 			<feature name="part_id" value="Disk 1 of 2"/>
-			<dataarea name="flop" size="1474050">
+			<dataarea name="flop" size="1474560">
 				<rom name="Doom_BBS_1.img" size="1474560" crc="e9b64e07" sha1="2f2a7ddc19b1c68696deaa06296684a6b0f4c538"/>
 			</dataarea>
 		</part>