diff --git a/routstr/core/settings.py b/routstr/core/settings.py
index efaa8484..35560a4c 100644
--- a/routstr/core/settings.py
+++ b/routstr/core/settings.py
@@ -53,7 +53,6 @@ class Settings(BaseSettings):
     tolerance_percentage: float = Field(default=1.0, env="TOLERANCE_PERCENTAGE")
     # Minimum per-request charge in millisatoshis when model pricing is free/zero
     min_request_msat: int = Field(default=1, env="MIN_REQUEST_MSAT")
-    cashu_mint_fee_msat: int = Field(default=60, env="CASHU_MINT_FEE_MSAT")
 
     # Network
     cors_origins: list[str] = Field(default_factory=lambda: ["*"], env="CORS_ORIGINS")
diff --git a/routstr/payment/helpers.py b/routstr/payment/helpers.py
index 2064727c..c44d3010 100644
--- a/routstr/payment/helpers.py
+++ b/routstr/payment/helpers.py
@@ -72,7 +72,7 @@ def check_token_balance(headers: dict, body: dict, max_cost_for_model: int) -> N
         token_obj.amount if token_obj.unit == "msat" else token_obj.amount * 1000
     )
 
-    fee_buffer = getattr(settings, "cashu_mint_fee_msat", 60)
+    fee_buffer = 60
     if max_cost_for_model > amount_msat + fee_buffer:
         raise HTTPException(
             status_code=413,
diff --git a/tests/unit/test_payment_helpers.py b/tests/unit/test_payment_helpers.py
index ad757e89..6ac4a6f1 100644
--- a/tests/unit/test_payment_helpers.py
+++ b/tests/unit/test_payment_helpers.py
@@ -139,10 +139,9 @@ async def test_check_token_balance_with_fee_buffer(
     monkeypatch.setattr(
         "routstr.payment.helpers.deserialize_token_from_string", mock_deserialize
     )
-    with patch.object(settings, "cashu_mint_fee_msat", 100):
-        headers = {"x-cashu": "token"}
-        body = {"model": "gpt-4"}
-        check_token_balance(headers, body, max_cost_for_model=320450)
+    headers = {"x-cashu": "token"}
+    body = {"model": "gpt-4"}
+    check_token_balance(headers, body, max_cost_for_model=320450)
 
 
 def test_check_token_balance_insufficient(monkeypatch: pytest.MonkeyPatch) -> None:
@@ -156,12 +155,11 @@ def test_check_token_balance_insufficient(monkeypatch: pytest.MonkeyPatch) -> No
     monkeypatch.setattr(
         "routstr.payment.helpers.deserialize_token_from_string", mock_deserialize
     )
-    with patch.object(settings, "cashu_mint_fee_msat", 100):
-        headers = {"x-cashu": "token"}
-        body = {"model": "gpt-4"}
-        with pytest.raises(HTTPException) as exc:
-            check_token_balance(headers, body, max_cost_for_model=320450)
-        assert exc.value.status_code == 413
-        detail = exc.value.detail  # type: ignore[assignment]
-        assert isinstance(detail, dict)
-        assert detail.get("type") == "minimum_balance_required"
+    headers = {"x-cashu": "token"}
+    body = {"model": "gpt-4"}
+    with pytest.raises(HTTPException) as exc:
+        check_token_balance(headers, body, max_cost_for_model=320450)
+    assert exc.value.status_code == 413
+    detail = exc.value.detail  # type: ignore[assignment]
+    assert isinstance(detail, dict)
+    assert detail.get("type") == "minimum_balance_required"