1 files changed, 11 insertions, 5 deletions
diff --git a/src/util/validation.cpp b/src/util/validation.cpp
index bd52f57751..89bc6665a4 100644
--- a/src/util/validation.cpp
+++ b/src/util/validation.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2019 The Bitcoin Core developers
+// Copyright (c) 2009-2020 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -8,12 +8,18 @@
 #include <consensus/validation.h>
 #include <tinyformat.h>
 
-/** Convert ValidationState to a human-readable message for logging */
 std::string FormatStateMessage(const ValidationState &state)
 {
-    return strprintf("%s%s",
-        state.GetRejectReason(),
-        state.GetDebugMessage().empty() ? "" : ", "+state.GetDebugMessage());
+    if (state.IsValid()) {
+        return "Valid";
+    }
+
+    const std::string debug_message = state.GetDebugMessage();
+    if (!debug_message.empty()) {
+        return strprintf("%s, %s", state.GetRejectReason(), debug_message);
+    }
+
+    return state.GetRejectReason();
 }
 
 const std::string strMessageMagic = "Bitcoin Signed Message:\n";