diff --git a/core/src/test/java/org/bitcoinj/wallet/KeyChainGroupTest.java b/core/src/test/java/org/bitcoinj/wallet/KeyChainGroupTest.java
index 215b00d8545..773b132a519 100644
--- a/core/src/test/java/org/bitcoinj/wallet/KeyChainGroupTest.java
+++ b/core/src/test/java/org/bitcoinj/wallet/KeyChainGroupTest.java
@@ -54,6 +54,7 @@ public class KeyChainGroupTest {
     private static final byte[] ENTROPY = Sha256Hash.hash("don't use a string seed like this in real life".getBytes());
     private static final KeyCrypterScrypt KEY_CRYPTER = new KeyCrypterScrypt(2);
     private static final KeyParameter AES_KEY = KEY_CRYPTER.deriveKey("password");
+    private static final double LOW_FALSE_POSITIVE_RATE = 0.00001;
     private KeyChainGroup group;
     private DeterministicKey watchingAccountKey;
 
@@ -334,7 +335,7 @@ public void encryptionWhilstEmpty() throws Exception {
     public void bloom() throws Exception {
         ECKey key1 = group.freshKey(KeyChain.KeyPurpose.RECEIVE_FUNDS);
         ECKey key2 = new ECKey();
-        BloomFilter filter = group.getBloomFilter(group.getBloomFilterElementCount(), 0.001, (long)(Math.random() * Long.MAX_VALUE));
+        BloomFilter filter = group.getBloomFilter(group.getBloomFilterElementCount(), LOW_FALSE_POSITIVE_RATE, (long)(Math.random() * Long.MAX_VALUE));
         assertTrue(filter.contains(key1.getPubKeyHash()));
         assertTrue(filter.contains(key1.getPubKey()));
         assertFalse(filter.contains(key2.getPubKey()));
@@ -346,7 +347,7 @@ public void bloom() throws Exception {
         // We ran ahead of the lookahead buffer.
         assertFalse(filter.contains(group.freshKey(KeyChain.KeyPurpose.RECEIVE_FUNDS).getPubKey()));
         group.importKeys(key2);
-        filter = group.getBloomFilter(group.getBloomFilterElementCount(), 0.001, (long) (Math.random() * Long.MAX_VALUE));
+        filter = group.getBloomFilter(group.getBloomFilterElementCount(), LOW_FALSE_POSITIVE_RATE, (long) (Math.random() * Long.MAX_VALUE));
         assertTrue(filter.contains(key1.getPubKeyHash()));
         assertTrue(filter.contains(key1.getPubKey()));
         assertTrue(filter.contains(key2.getPubKey()));
@@ -377,7 +378,7 @@ public void bloomFilterForMarriedChains() throws Exception {
         assertEquals(expected, group.getBloomFilterElementCount());
         Address address1 = group.freshAddress(KeyChain.KeyPurpose.RECEIVE_FUNDS);
         assertEquals(expected, group.getBloomFilterElementCount());
-        BloomFilter filter = group.getBloomFilter(expected + 2, 0.001, (long)(Math.random() * Long.MAX_VALUE));
+        BloomFilter filter = group.getBloomFilter(expected + 2, LOW_FALSE_POSITIVE_RATE, (long)(Math.random() * Long.MAX_VALUE));
         assertTrue(filter.contains(address1.getHash()));
 
         Address address2 = group.freshAddress(KeyChain.KeyPurpose.CHANGE);