diff --git a/src/net.cpp b/src/net.cpp
index 1e6375986626c..b85a8c2c1d997 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -715,7 +715,10 @@ void CNode::copyStats(CNodeStats &stats)
         X(nRecvBytes);
     }
     X(fWhitelisted);
-    X(minFeeFilter);
+    {
+        LOCK(cs_feeFilter);
+        X(minFeeFilter);
+    }
 
     // It is common for nodes with good ping times to suddenly become lagged,
     // due to a new block arriving or other large transfer.