diff --git a/src/init.cpp b/src/init.cpp
index ff7a9011..585e4ca8 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -560,6 +560,9 @@ bool AppInit2(boost::thread_group& threadGroup)
     // Check for -debugnet (deprecated)
     if (GetBoolArg("-debugnet", false))
         InitWarning(_("Warning: Deprecated argument -debugnet ignored, use -debug=net"));
+    // Check for -tor - as this is a privacy risk to continue, exit here
+    if (GetBoolArg("-tor", false))
+        return InitError(_("Error: Unsupported argument -tor found, use -onion."));
 
     fBenchmark = GetBoolArg("-benchmark", false);
     // Checkmempool defaults to true in regtest mode
@@ -766,19 +769,15 @@ bool AppInit2(boost::thread_group& threadGroup)
     }
 
     // -onion can override normal proxy, -noonion disables tor entirely
-    // -tor here is a temporary backwards compatibility measure
-    if (mapArgs.count("-tor"))
-        printf("Notice: option -tor has been replaced with -onion and will be removed in a later version.\n");
     if (!(mapArgs.count("-onion") && mapArgs["-onion"] == "0") &&
-        !(mapArgs.count("-tor") && mapArgs["-tor"] == "0") &&
-         (fProxy || mapArgs.count("-onion") || mapArgs.count("-tor"))) {
+        (fProxy || mapArgs.count("-onion"))) {
         CService addrOnion;
-        if (!mapArgs.count("-onion") && !mapArgs.count("-tor"))
+        if (!mapArgs.count("-onion"))
             addrOnion = addrProxy;
         else
-            addrOnion = mapArgs.count("-onion")?CService(mapArgs["-onion"], 9050):CService(mapArgs["-tor"], 9050);
+            addrOnion = CService(mapArgs["-onion"], 9050);
         if (!addrOnion.IsValid())
-            return InitError(strprintf(_("Invalid -onion address: '%s'"), mapArgs.count("-onion")?mapArgs["-onion"]:mapArgs["-tor"]));
+            return InitError(strprintf(_("Invalid -onion address: '%s'"), mapArgs["-onion"]));
         SetProxy(NET_TOR, addrOnion, 5);
         SetReachable(NET_TOR);
     }