1 files changed, 2 insertions, 0 deletions
diff --git a/test/test_msg.cpp b/test/test_msg.cpp
index e4f35fa..ee13166 100644
--- a/test/test_msg.cpp
+++ b/test/test_msg.cpp
@@ -61,6 +61,8 @@ struct MsgTest {
     }
 };
 
+const opcode_t MsgTest::opcode;
+
 int main() {
     salticidae::MsgBase<opcode_t> msg(MsgTest(10));
     printf("%s\n", std::string(msg).c_str());