diff --git a/coins/quarkcoin.json b/coins/quarkcoin.json
index 797e7cd..983f340 100644
--- a/coins/quarkcoin.json
+++ b/coins/quarkcoin.json
@@ -1,5 +1,6 @@
 {
     "name": "Quarkcoin",
     "symbol": "QRK",
-    "algorithm": "quark"
-}
\ No newline at end of file
+    "algorithm": "quark",
+    "mposDiffMultiplier": 256
+}