1 files changed, 1 insertions, 0 deletions
diff --git a/src/net.h b/src/net.h
index cf742a8caa..ddc050eb1f 100644
--- a/src/net.h
+++ b/src/net.h
@@ -598,6 +598,7 @@ public:
     // store the sanitized version in cleanSubVer. The original should be used when dealing with
     // the network or wire types and the cleaned string used when displayed or logged.
     std::string strSubVer, cleanSubVer;
+    CCriticalSection cs_SubVer; // used for both cleanSubVer and strSubVer
     bool fWhitelisted; // This peer can bypass DoS banning.
     bool fFeeler; // If true this node is being used as a short lived feeler.
     bool fOneShot;