diff --git a/protocol/sources/bottle.move b/protocol/sources/bottle.move
index 0be24ea..2993823 100644
--- a/protocol/sources/bottle.move
+++ b/protocol/sources/bottle.move
@@ -142,23 +142,23 @@ module bucket_protocol::bottle {
     }
 
     fun compute_buck_value_to_collateral(
-        buck_amount: u64, 
-        collateral_decimal: u8, 
-        price: u64, 
+        buck_amount: u64,
+        collateral_decimal: u8,
+        price: u64,
         denominator: u64
     ): u64 {
 
-        let buck_raw_value = 
+        let buck_raw_value =
             mul_factor(
-                buck_amount, 
-                denominator, 
+                buck_amount,
+                denominator,
                 price
             );
 
         if (constants::buck_decimal() >= collateral_decimal) {
             buck_raw_value / pow(10, constants::buck_decimal() - collateral_decimal)
         } else {
-            buck_raw_value * pow(10, collateral_decimal - constants::buck_decimal())
+            (((buck_raw_value as u128) * (pow(10, collateral_decimal - constants::buck_decimal()) as u128)) as u64)
         }
     }
     
diff --git a/protocol/sources/bucket.move b/protocol/sources/bucket.move
index 060e521..835b905 100644
--- a/protocol/sources/bucket.move
+++ b/protocol/sources/bucket.move
@@ -701,7 +701,7 @@ module bucket_protocol::bucket {
     ): u64 {
         let collateral_raw_value = mul_factor(collateral_amount, price, denominator);
         if (constants::buck_decimal() >= collateral_decimal) {
-            collateral_raw_value * pow(10, constants::buck_decimal() - collateral_decimal)
+            (((collateral_raw_value as u128) * (pow(10, constants::buck_decimal() - collateral_decimal) as u128)) as u64)
         } else {
             collateral_raw_value / pow(10, collateral_decimal - constants::buck_decimal())
         }
@@ -712,7 +712,7 @@ module bucket_protocol::bucket {
         if (constants::buck_decimal() >= collateral_decimal) {
             buck_raw_value / pow(10, constants::buck_decimal() - collateral_decimal)
         } else {
-            buck_raw_value * pow(10, collateral_decimal - constants::buck_decimal())
+            (((buck_raw_value as u128) * (pow(10, collateral_decimal - constants::buck_decimal()) as u128)) as u64)
         }
     }