diff --git a/contracts/src/Payment.sol b/contracts/src/Payment.sol
index 21af600b..fd13ea7a 100644
--- a/contracts/src/Payment.sol
+++ b/contracts/src/Payment.sol
@@ -62,6 +62,8 @@ contract Payment {
         address publisher = msg.sender;
         Channel storage channel = channels[publisher][provider][podId];
 
+        if (channel.investedByPublisher == 0) revert DoesNotExist();
+
         channel.investedByPublisher = channel.investedByPublisher + amount;
         channel.unlockedAt = 0;
 
diff --git a/contracts/test/Payment.t.sol b/contracts/test/Payment.t.sol
index a9e1d742..21711fc5 100644
--- a/contracts/test/Payment.t.sol
+++ b/contracts/test/Payment.t.sol
@@ -45,6 +45,9 @@ contract PaymentTest is Test {
         token.mint(1000);
 
         token.approve(address(payment), 500);
+        vm.expectRevert(Payment.DoesNotExist.selector);
+        payment.deposit(provider, podId, 500);
+
         payment.createChannel(provider, podId, 1, 500);
 
         token.approve(address(payment), 500);