diff --git a/src/primitives/transaction.h b/src/primitives/transaction.h
index d19a275bfd..218862bb2b 100644
--- a/src/primitives/transaction.h
+++ b/src/primitives/transaction.h
@@ -359,7 +359,10 @@ public:
     CTxOutValue nInflationKeys;
 
 public:
-    // FIXME: constructor and methods
+    CAssetIssuance()
+    {
+        SetNull();
+    }
 
     ADD_SERIALIZE_METHODS;