diff --git a/src/main.cpp b/src/main.cpp
index bfcd3c538..475c1546b 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -106,7 +106,7 @@ size_t nCoinCacheUsage = 5000 * 300;
 uint64_t nPruneTarget = 0;
 // If the tip is older than this (in seconds), the node is considered to be in initial block download.
 int64_t nMaxTipAge = DEFAULT_MAX_TIP_AGE;
-bool ishush3 = strncmp(SMART_CHAIN_SYMBOL, "HUSH3",5) == 0 ? true : false;
+const bool ishush3 = strncmp(SMART_CHAIN_SYMBOL, "HUSH3",5) == 0 ? true : false;
 int32_t nFirstHalvingHeight = 340000;
 
 unsigned int expiryDelta = DEFAULT_TX_EXPIRY_DELTA;
@@ -6886,7 +6886,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
         LogPrintf("dropmessagestest DROPPING RECV MESSAGE\n");
         return true;
     }
-    auto p2pdebug = GetArg("-p2pdebug",0);
+    const bool p2pdebug = GetArg("-p2pdebug",0);
 
     if(p2pdebug)
         fprintf(stderr,"%s: netmsg: %s from %s\n", __func__, strCommand.c_str(), pfrom->addr.ToString().c_str() );
@@ -6913,7 +6913,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
         CAddress addrFrom;
         uint64_t nNonce = 1;
         int nVersion;           // use temporary for version, don't set version number until validated as connected
-        int minVersion = MIN_PEER_PROTO_VERSION;
+        const int minVersion = ishush3 ? MIN_HUSH_PEER_PROTO_VERSION : MIN_PEER_PROTO_VERSION;
         vRecv >> nVersion >> pfrom->nServices >> nTime >> addrMe;
         if (nVersion == 10300)
             nVersion = 300;
diff --git a/src/version.h b/src/version.h
index 74a686bd1..d4641ec5a 100644
--- a/src/version.h
+++ b/src/version.h
@@ -26,8 +26,13 @@ static const int PROTOCOL_VERSION = 1987426;
 static const int INIT_PROTO_VERSION = 209;
 //! In this version, 'getheaders' was introduced.
 static const int GETHEADERS_VERSION = 31800;
-//! disconnect from peers older than this proto version
+
+//! disconnect from peers older than this proto version (HUSH mainnet)
+static const int MIN_HUSH_PEER_PROTO_VERSION = 1987426;
+
+//! disconnect from peers older than this proto version (HACs)
 static const int MIN_PEER_PROTO_VERSION = 1987420;
+
 //! nTime field added to CAddress, starting with this version;
 //! if possible, avoid requesting addresses nodes older than this
 static const int CADDR_TIME_VERSION = 31402;