diff --git a/crypto/secp256k1/libsecp256k1/src/java/org/bitcoin/NativeSecp256k1.java b/crypto/secp256k1/libsecp256k1/src/java/org/bitcoin/NativeSecp256k1.java
index cafd5929f9..8540824898 100644
--- a/crypto/secp256k1/libsecp256k1/src/java/org/bitcoin/NativeSecp256k1.java
+++ b/crypto/secp256k1/libsecp256k1/src/java/org/bitcoin/NativeSecp256k1.java
@@ -24,9 +24,6 @@ import java.math.BigInteger;
 import com.google.common.base.Preconditions;
 import java.util.concurrent.locks.Lock;
 import java.util.concurrent.locks.ReentrantReadWriteLock;
-
-import org.bitcoin.NativeSecp256k1Util.AssertFailException;
-
 import static org.bitcoin.NativeSecp256k1Util.*;
 
 /**