diff --git a/crypto/block/block.tlb b/crypto/block/block.tlb
index b0d96235..7e2b12f9 100644
--- a/crypto/block/block.tlb
+++ b/crypto/block/block.tlb
@@ -720,10 +720,10 @@ _ (HashmapE 256 ValidatorSignedTempKey) = ConfigParam 39;
 
 misbehaviour_punishment_config_v1#01 
   default_flat_fine:Grams default_proportional_fine:uint32
-  severity_flat_mult:uint8 severity_proportional_mult:uint8
+  severity_flat_mult:uint16 severity_proportional_mult:uint16
   unpunishable_interval:uint16
-  long_interval:uint16 long_flat_mult:uint8 long_proportional_mult:uint8
-  medium_interval:uint16 medium_flat_mult:uint8 medium_proportional_mult:uint8
+  long_interval:uint16 long_flat_mult:uint16 long_proportional_mult:uint16
+  medium_interval:uint16 medium_flat_mult:uint16 medium_proportional_mult:uint16
    = MisbehaviourPunishmentConfig;
 _ MisbehaviourPunishmentConfig = ConfigParam 40;
 
diff --git a/lite-client/lite-client.cpp b/lite-client/lite-client.cpp
index f50c118c..1ccfec86 100644
--- a/lite-client/lite-client.cpp
+++ b/lite-client/lite-client.cpp
@@ -3722,18 +3722,18 @@ bool compute_punishment(int interval, bool severe, td::RefInt256& fine, unsigned
   fine_part = rec.default_proportional_fine;
 
   if (severe) {
-    fine = fine * rec.severity_flat_mult;
-    fine_part = fine_part * rec.severity_proportional_mult;
+    fine = fine * rec.severity_flat_mult; fine >>= 8;
+    fine_part = fine_part * rec.severity_proportional_mult; fine_part >>= 8;
   }
 
   if (interval >= rec.long_interval) {
-    fine = fine * rec.long_flat_mult;
-    fine_part = fine_part * rec.long_proportional_mult;
+    fine = fine * rec.long_flat_mult; fine >>= 8;
+    fine_part = fine_part * rec.long_proportional_mult; fine_part >>= 8;
     return true;
   }
   if (interval >= rec.medium_interval) {
-    fine = fine * rec.medium_flat_mult;
-    fine_part = fine_part * rec.medium_proportional_mult;
+    fine = fine * rec.medium_flat_mult; fine >>= 8;
+    fine_part = fine_part * rec.medium_proportional_mult; fine_part >>= 8;
     return true;
   }
   return true;