diff --git a/TestHelper.cpp b/TestHelper.cpp
index 8e4c493eb..8a00a5462 100644
--- a/TestHelper.cpp
+++ b/TestHelper.cpp
@@ -64,6 +64,9 @@ void connectClients(Client& c1, Client& c2)
 namespace test
 {
 
+struct ValueTooLarge: virtual Exception {};
+bigint const c_max256plus1 = bigint(1) << 256;
+
 ImportTest::ImportTest(json_spirit::mObject& _o, bool isFiller): m_TestObject(_o)
 {
 	importEnv(_o["env"].get_obj());
diff --git a/TestHelper.h b/TestHelper.h
index 2b93bccfb..ae6ea20cc 100644
--- a/TestHelper.h
+++ b/TestHelper.h
@@ -42,9 +42,6 @@ void connectClients(Client& c1, Client& c2);
 namespace test
 {
 
-struct ValueTooLarge: virtual Exception {};
-bigint const c_max256plus1 = bigint(1) << 256;
-
 class ImportTest
 {
 public: