diff --git a/TestUtils.cpp b/TestUtils.cpp
index ff5169d55..bd603a61f 100644
--- a/TestUtils.cpp
+++ b/TestUtils.cpp
@@ -22,6 +22,7 @@
 #include <thread>
 #include <boost/test/unit_test.hpp>
 #include <boost/filesystem.hpp>
+#include <libdevcrypto/Common.h>
 #include <libtestutils/Common.h>
 #include <libtestutils/BlockChainLoader.h>
 #include <libtestutils/FixedClient.h>
@@ -116,3 +117,13 @@ void ParallelClientBaseFixture::enumerateClients(std::function<void(Json::Value
 		});
 	});
 }
+
+MoveNonceToTempDir::MoveNonceToTempDir()
+{
+	crypto::Nonce::setSeedFilePath(m_dir.path() + "/seed");
+}
+
+MoveNonceToTempDir::~MoveNonceToTempDir()
+{
+	crypto::Nonce::reset();
+}
diff --git a/TestUtils.h b/TestUtils.h
index f9817c21d..945586354 100644
--- a/TestUtils.h
+++ b/TestUtils.h
@@ -24,6 +24,7 @@
 #include <functional>
 #include <string>
 #include <json/json.h>
+#include <libdevcore/TransientDirectory.h>
 #include <libethereum/BlockChain.h>
 #include <libethereum/ClientBase.h>
 
@@ -78,5 +79,13 @@ struct JsonRpcFixture: public ClientBaseFixture
 	
 };
 
+struct MoveNonceToTempDir
+{
+	MoveNonceToTempDir();
+	~MoveNonceToTempDir();
+private:
+	TransientDirectory m_dir;
+};
+
 }
 }