diff --git a/fuse/ipns/ipns_test.go b/fuse/ipns/ipns_test.go
index 9ac110d60..276f6a0dc 100644
--- a/fuse/ipns/ipns_test.go
+++ b/fuse/ipns/ipns_test.go
@@ -66,10 +66,10 @@ func verifyFile(t *testing.T, path string, wantData []byte) {
 		t.Fatal(err)
 	}
 	if len(isData) != len(wantData) {
-		t.Fatal("data not equal - length check failed")
+		t.Fatal("Data not equal - length check failed")
 	}
 	if !bytes.Equal(isData, wantData) {
-		t.Fatal("data not equal")
+		t.Fatal("Data not equal")
 	}
 }
 
@@ -328,7 +328,7 @@ func TestAppendFile(t *testing.T) {
 		t.Fatal(err)
 	}
 	if !bytes.Equal(rbuf, data) {
-		t.Fatal("data inconsistent!")
+		t.Fatal("Data inconsistent!")
 	}
 }
 
@@ -458,7 +458,7 @@ func TestFSThrash(t *testing.T) {
 		}
 
 		if !bytes.Equal(data, out) {
-			t.Errorf("data didn't match in %s: expected %v, got %v", name, data, out)
+			t.Errorf("Data didn't match in %s: expected %v, got %v", name, data, out)
 		}
 	}
 }
diff --git a/fuse/readonly/readonly_unix.go b/fuse/readonly/readonly_unix.go
index dc7451d42..7e92aa6bf 100644
--- a/fuse/readonly/readonly_unix.go
+++ b/fuse/readonly/readonly_unix.go
@@ -272,7 +272,7 @@ func (s *Node) Read(ctx context.Context, req *fuse.ReadRequest, resp *fuse.ReadR
 	if err != nil {
 		return err
 	}
-	// data has a capacity of Size
+	// Data has a capacity of Size
 	buf := resp.Data[:int(req.Size)]
 	n, err := io.ReadFull(r, buf)
 	resp.Data = buf[:n]
diff --git a/settlement/swap/vault/cashout.go b/settlement/swap/vault/cashout.go
index e4a168026..9ac7bedae 100644
--- a/settlement/swap/vault/cashout.go
+++ b/settlement/swap/vault/cashout.go
@@ -134,7 +134,7 @@ func cashoutActionKey(vault common.Address, token common.Address) string {
 //
 //	output, err := s.transactionService.Call(ctx, &transaction.TxRequest{
 //		To:   &vault,
-//		data: callData,
+//		Data: callData,
 //	})
 //	if err != nil {
 //		return nil, err
@@ -198,7 +198,7 @@ func (s *cashoutService) CashCheque(ctx context.Context, vault, recipient common
 	//}
 	//request := &transaction.TxRequest{
 	//	To:          &vault,
-	//	data:        callData,
+	//	Data:        callData,
 	//	Value:       big.NewInt(0),
 	//	Description: "cheque cashout",
 	//}
diff --git a/settlement/swap/vault/factory_test.go b/settlement/swap/vault/factory_test.go
index f52c352ec..652eb87e3 100644
--- a/settlement/swap/vault/factory_test.go
+++ b/settlement/swap/vault/factory_test.go
@@ -207,12 +207,12 @@ func TestFactoryVerifyVault(t *testing.T) {
 // 					Status: 1,
 // 					Logs: []*types.Log{
 // 						{
-// 							data: logData,
+// 							Data: logData,
 // 						},
 // 						{
 // 							Address: factoryAddress,
 // 							Topics:  []common.Hash{simpleSwapDeployedEvent.ID},
-// 							data:    logData,
+// 							Data:    logData,
 // 						},
 // 					},
 // 				}, nil
diff --git a/settlement/swap/vault/vault.go b/settlement/swap/vault/vault.go
index d4733a3d2..d8fe95800 100644
--- a/settlement/swap/vault/vault.go
+++ b/settlement/swap/vault/vault.go
@@ -526,7 +526,7 @@ func (s *service) LastCheques(token common.Address) (map[common.Address]*SignedC
 //
 //	request := &transaction.TxRequest{
 //		To:          &s.address,
-//		data:        callData,
+//		Data:        callData,
 //		Value:       big.NewInt(0),
 //		Description: fmt.Sprintf("vault withdrawal of %d WBTT", amount),
 //	}