diff --git a/smart-contracts/interfaces.md b/smart-contracts/interfaces.md
index 478134c..67df785 100644
--- a/smart-contracts/interfaces.md
+++ b/smart-contracts/interfaces.md
@@ -136,7 +136,7 @@ interface BPool {
         uint totalWeight,
         uint poolAmountOut,
         uint swapFee
-    ) public pure returns (uint tokenAmountIn)
+    ) public pure returns (uint tokenAmountIn);
 
     function calcSingleOutGivenPoolIn(
         uint tokenBalanceOut,
@@ -145,7 +145,7 @@ interface BPool {
         uint totalWeight,
         uint poolAmountIn,
         uint swapFee
-    ) public pure returns (uint tokenAmountOut)
+    ) public pure returns (uint tokenAmountOut);
 
     function calcPoolInGivenSingleOut(
         uint tokenBalanceOut,
@@ -154,7 +154,7 @@ interface BPool {
         uint totalWeight,
         uint tokenAmountOut,
         uint swapFee
-    ) public pure returns (uint poolAmountIn)
+    ) public pure returns (uint poolAmountIn);
 
 }
 ```
@@ -181,7 +181,7 @@ interface ExchangeProxy {
         uint maxTotalAmountIn
     )
         public payable
-        returns (uint totalAmountIn)
+        returns (uint totalAmountIn);
 
     function multihopBatchSwapExactIn(
         Swap[][] memory swapSequences,
@@ -191,7 +191,7 @@ interface ExchangeProxy {
         uint minTotalAmountOut
     )
         public payable
-        returns (uint totalAmountOut)
+        returns (uint totalAmountOut);
 
     function multihopBatchSwapExactOut(
         Swap[][] memory swapSequences,
@@ -200,7 +200,7 @@ interface ExchangeProxy {
         uint maxTotalAmountIn
     )
         public payable
-        returns (uint totalAmountIn)
+        returns (uint totalAmountIn);
 
     function smartSwapExactIn(
         TokenInterface tokenIn,
@@ -210,7 +210,7 @@ interface ExchangeProxy {
         uint nPools
     )
         public payable
-        returns (uint totalAmountOut)
+        returns (uint totalAmountOut);
 
     function smartSwapExactOut(
         TokenInterface tokenIn,
@@ -220,7 +220,7 @@ interface ExchangeProxy {
         uint nPools
     )
         public payable
-        returns (uint totalAmountIn)
+        returns (uint totalAmountIn);
 
     function viewSplitExactIn(
         address tokenIn,
@@ -229,7 +229,7 @@ interface ExchangeProxy {
         uint nPools
     )
         public view
-        returns (Swap[] memory swaps, uint totalOutput)
+        returns (Swap[] memory swaps, uint totalOutput);
 
     function viewSplitExactOut(
         address tokenIn,
@@ -238,7 +238,7 @@ interface ExchangeProxy {
         uint nPools
     )
         public view
-        returns (Swap[] memory swaps, uint totalOutput)
+        returns (Swap[] memory swaps, uint totalOutput);
 }
 
 ```