diff --git a/docs/devs/installation.md b/docs/devs/installation.md
index e20bbd21..cbf234cc 100644
--- a/docs/devs/installation.md
+++ b/docs/devs/installation.md
@@ -13,7 +13,7 @@ LNbits uses [Pipenv][pipenv] to manage Python packages.
 git clone https://github.com/lnbits/lnbits-legend.git
 cd lnbits-legend/
 
-sudo apt-get install -y python3-venv
+sudo apt-get install pipenv
 pipenv shell
 # pipenv --python 3.9 shell (if you wish to use a version of Python higher than 3.7)
 pipenv install --dev
diff --git a/lnbits/core/services.py b/lnbits/core/services.py
index 875f7644..3d54e218 100644
--- a/lnbits/core/services.py
+++ b/lnbits/core/services.py
@@ -321,10 +321,7 @@ async def check_invoice_status(
     payment = await get_wallet_payment(wallet_id, payment_hash, conn=conn)
     if not payment:
         return PaymentStatus(None)
-    if payment.is_out:
-        status = await WALLET.get_payment_status(payment.checking_id)
-    else:
-        status = await WALLET.get_invoice_status(payment.checking_id)
+    status = await WALLET.get_invoice_status(payment.checking_id)
     if not payment.pending:
         return status
     if payment.is_out and status.failed: