diff --git a/secp256k1.h b/secp256k1.h
new file mode 100644
index 0000000..806af8b
--- /dev/null
+++ b/secp256k1.h
@@ -0,0 +1,8 @@
+#ifndef _SECP256K1_
+#define _SECP256K1_
+
+namespace secp256k1 {
+int VerifyECDSA(const unsigned char *msg, int msglen, const unsigned char *sig, int siglen, const unsigned char *pubkey, int pubkeylen);
+}
+
+#endif