diff --git a/test/contracts/AuctionRegistrar.cpp b/test/contracts/AuctionRegistrar.cpp
index f94cc9352..9aa471890 100644
--- a/test/contracts/AuctionRegistrar.cpp
+++ b/test/contracts/AuctionRegistrar.cpp
@@ -124,13 +124,19 @@ contract GlobalRegistrar is Registrar, AuctionSystem {
 	function onAuctionEnd(string _name) internal {
 		var auction = m_auctions[_name];
 		var record = m_toRecord[_name];
-		if (record.owner != 0)
-			record.owner.send(auction.sumOfBids - auction.highestBid / 100);
-		else
-			auction.highestBidder.send(auction.highestBid - auction.secondHighestBid);
+		var previousOwner = record.owner;
 		record.renewalDate = now + c_renewalInterval;
 		record.owner = auction.highestBidder;
 		Changed(_name);
+		if (previousOwner != 0) {
+			if (!record.owner.send(auction.sumOfBids - auction.highestBid / 100))
+				throw;
+		}
+		else
+		{
+			if (!auction.highestBidder.send(auction.highestBid - auction.secondHighestBid))
+				throw;
+		}
 	}
 
 	function reserve(string _name) external {
diff --git a/test/contracts/FixedFeeRegistrar.cpp b/test/contracts/FixedFeeRegistrar.cpp
index dec29b378..8cb8257aa 100644
--- a/test/contracts/FixedFeeRegistrar.cpp
+++ b/test/contracts/FixedFeeRegistrar.cpp
@@ -81,7 +81,8 @@ contract FixedFeeRegistrar is Registrar {
 	}
 	function disown(string _name, address _refund) onlyrecordowner(_name) {
 		delete m_recordData[uint(sha3(_name)) / 8];
-		_refund.send(c_fee);
+		if (!_refund.send(c_fee))
+			throw;
 		Changed(_name);
 	}
 	function transfer(string _name, address _newOwner) onlyrecordowner(_name) {