1 files changed, 6 insertions, 0 deletions
diff --git a/src/test/test_bitcoin.cpp b/src/test/test_bitcoin.cpp
index 9857827f05..e9814edc23 100644
--- a/src/test/test_bitcoin.cpp
+++ b/src/test/test_bitcoin.cpp
@@ -39,6 +39,12 @@ FastRandomContext insecure_rand_ctx(insecure_rand_seed);
 extern bool fPrintToConsole;
 extern void noui_connect();
 
+std::ostream& operator<<(std::ostream& os, const uint256& num)
+{
+    os << num.ToString();
+    return os;
+}
+
 BasicTestingSetup::BasicTestingSetup(const std::string& chainName)
 {
         SHA256AutoDetect();