diff --git a/contracts/contracts/vault/VaultCore.sol b/contracts/contracts/vault/VaultCore.sol
index 6943de2966..61c516bf6e 100644
--- a/contracts/contracts/vault/VaultCore.sol
+++ b/contracts/contracts/vault/VaultCore.sol
@@ -440,7 +440,7 @@ contract VaultCore is VaultStorage {
         // Write dripper state
         dripperReserve = _dripperReserve;
         dripper = Dripper({
-            perBlock: uint128(_dripperReserve / _dripDuration),
+            perSecond: uint128(_dripperReserve / _dripDuration),
             lastCollect: uint64(block.timestamp),
             dripDuration: _dripper.dripDuration // must use stored value
         });
@@ -478,7 +478,7 @@ contract VaultCore is VaultStorage {
         returns (uint256)
     {
         uint256 elapsed = block.timestamp - _drip.lastCollect;
-        uint256 allowed = (elapsed * _drip.perBlock);
+        uint256 allowed = (elapsed * _drip.perSecond);
         return (allowed > _reserve) ? _reserve : allowed;
     }
 
diff --git a/contracts/contracts/vault/VaultStorage.sol b/contracts/contracts/vault/VaultStorage.sol
index 3942a923ab..0a12c0f564 100644
--- a/contracts/contracts/vault/VaultStorage.sol
+++ b/contracts/contracts/vault/VaultStorage.sol
@@ -135,7 +135,7 @@ contract VaultStorage is Initializable, Governable {
     // Dripper config/state
     struct Dripper {
         uint64 lastCollect;
-        uint128 perBlock;
+        uint128 perSecond;
         uint64 dripDuration;
     }
     Dripper public dripper;