diff --git a/api/api.go b/api/api.go
index d2c3ccc5..e6b2091f 100644
--- a/api/api.go
+++ b/api/api.go
@@ -145,7 +145,7 @@ func (api *api) UpdateApp(userApp *db.App, updateAppRequest *UpdateAppRequest) e
 					App:           *userApp,
 					Scope:         method,
 					ExpiresAt:     expiresAt,
-					MaxAmount:     int(maxAmount),
+					MaxAmountSat:  int(maxAmount),
 					BudgetRenewal: budgetRenewal,
 				}
 				if err := tx.Create(&perm).Error; err != nil {
@@ -195,7 +195,7 @@ func (api *api) GetApp(dbApp *db.App) *App {
 
 	//renewsIn := ""
 	budgetUsage := uint64(0)
-	maxAmount := uint64(paySpecificPermission.MaxAmount)
+	maxAmount := uint64(paySpecificPermission.MaxAmountSat)
 	if maxAmount > 0 {
 		budgetUsage = queries.GetBudgetUsageSat(api.db, &paySpecificPermission)
 	}
@@ -251,7 +251,7 @@ func (api *api) ListApps() ([]App, error) {
 			apiApp.ExpiresAt = appPermission.ExpiresAt
 			if appPermission.Scope == constants.PAY_INVOICE_SCOPE {
 				apiApp.BudgetRenewal = appPermission.BudgetRenewal
-				apiApp.MaxAmountSat = uint64(appPermission.MaxAmount)
+				apiApp.MaxAmountSat = uint64(appPermission.MaxAmountSat)
 				if apiApp.MaxAmountSat > 0 {
 					apiApp.BudgetUsage = queries.GetBudgetUsageSat(api.db, &appPermission)
 				}
diff --git a/db/db_service.go b/db/db_service.go
index 031ba46a..63b163e5 100644
--- a/db/db_service.go
+++ b/db/db_service.go
@@ -53,7 +53,7 @@ func (svc *dbService) CreateApp(name string, pubkey string, maxAmountSat uint64,
 				Scope:     scope,
 				ExpiresAt: expiresAt,
 				//these fields are only relevant for pay_invoice
-				MaxAmount:     int(maxAmountSat),
+				MaxAmountSat:  int(maxAmountSat),
 				BudgetRenewal: budgetRenewal,
 			}
 			err = tx.Create(&appPermission).Error
diff --git a/db/migrations/202407012100_transactions.go b/db/migrations/202407012100_transactions.go
index b3fd8ae5..3b99be6f 100644
--- a/db/migrations/202407012100_transactions.go
+++ b/db/migrations/202407012100_transactions.go
@@ -47,6 +47,8 @@ ALTER TABLE app_permissions ADD visibility string;
 UPDATE app_permissions set balance_type = "full";
 UPDATE app_permissions set visibility = "full";
 
+ALTER TABLE app_permissions RENAME COLUMN max_amount TO max_amount_sat;
+
 `).Error; err != nil {
 			return err
 		}
diff --git a/db/models.go b/db/models.go
index f74111a3..a1a6efbb 100644
--- a/db/models.go
+++ b/db/models.go
@@ -25,7 +25,7 @@ type AppPermission struct {
 	AppId         uint `validate:"required"`
 	App           App
 	Scope         string `validate:"required"`
-	MaxAmount     int    // TODO: rename to MaxAmountSat
+	MaxAmountSat  int
 	BudgetRenewal string
 	ExpiresAt     *time.Time
 	CreatedAt     time.Time
diff --git a/nip47/permissions/permissions.go b/nip47/permissions/permissions.go
index c761d6fa..4e1f1987 100644
--- a/nip47/permissions/permissions.go
+++ b/nip47/permissions/permissions.go
@@ -60,7 +60,7 @@ func (svc *permissionsService) HasPermission(app *db.App, scope string, amountMs
 	}
 
 	if scope == constants.PAY_INVOICE_SCOPE {
-		maxAmount := appPermission.MaxAmount
+		maxAmount := appPermission.MaxAmountSat
 		if maxAmount != 0 {
 			budgetUsage := queries.GetBudgetUsageSat(svc.db, &appPermission)
 
diff --git a/nip47/permissions/permissions_test.go b/nip47/permissions/permissions_test.go
index a5224bcc..c5d0a6ed 100644
--- a/nip47/permissions/permissions_test.go
+++ b/nip47/permissions/permissions_test.go
@@ -39,7 +39,7 @@ func TestHasPermission_Expired(t *testing.T) {
 		AppId:         app.ID,
 		App:           *app,
 		Scope:         PAY_INVOICE_SCOPE,
-		MaxAmount:     100,
+		MaxAmountSat:  100,
 		BudgetRenewal: budgetRenewal,
 		ExpiresAt:     &expiresAt,
 	}
@@ -67,7 +67,7 @@ func TestHasPermission_Exceeded(t *testing.T) {
 		AppId:         app.ID,
 		App:           *app,
 		Scope:         models.PAY_INVOICE_METHOD,
-		MaxAmount:     10,
+		MaxAmountSat:  10,
 		BudgetRenewal: budgetRenewal,
 		ExpiresAt:     &expiresAt,
 	}
@@ -95,7 +95,7 @@ func TestHasPermission_OK(t *testing.T) {
 		AppId:         app.ID,
 		App:           *app,
 		Scope:         models.PAY_INVOICE_METHOD,
-		MaxAmount:     10,
+		MaxAmountSat:  10,
 		BudgetRenewal: budgetRenewal,
 		ExpiresAt:     &expiresAt,
 	}
diff --git a/transactions/transactions_service.go b/transactions/transactions_service.go
index ad07cc8e..221ea125 100644
--- a/transactions/transactions_service.go
+++ b/transactions/transactions_service.go
@@ -670,9 +670,9 @@ func (svc *transactionsService) validateCanPay(tx *gorm.DB, appId *uint, amount
 			}
 		}
 
-		if appPermission.MaxAmount > 0 {
+		if appPermission.MaxAmountSat > 0 {
 			budgetUsageSat := queries.GetBudgetUsageSat(tx, &appPermission)
-			if int(amountWithFeeReserve/1000) > appPermission.MaxAmount-int(budgetUsageSat) {
+			if int(amountWithFeeReserve/1000) > appPermission.MaxAmountSat-int(budgetUsageSat) {
 				return NewQuotaExceededError()
 			}
 		}