diff --git a/contrib/epee/src/mlog.cpp b/contrib/epee/src/mlog.cpp
index e96bf627f..bcde215be 100644
--- a/contrib/epee/src/mlog.cpp
+++ b/contrib/epee/src/mlog.cpp
@@ -100,7 +100,7 @@ static const char *get_default_categories(int level)
   switch (level)
   {
     case 0:
-      categories = "*:WARNING,net:FATAL,net.http:FATAL,net.ssl:FATAL,net.p2p:FATAL,net.cn:FATAL,global:INFO,verify:FATAL,serialization:FATAL,daemon.rpc.payment:ERROR,stacktrace:INFO,logging:INFO,msgwriter:INFO";
+      categories = "*:WARNING,net:FATAL,net.http:FATAL,net.ssl:FATAL,net.p2p:FATAL,net.cn:FATAL,daemon.rpc:FATAL,global:INFO,verify:FATAL,serialization:FATAL,daemon.rpc.payment:ERROR,stacktrace:INFO,logging:INFO,msgwriter:INFO";
       break;
     case 1:
       categories = "*:INFO,global:INFO,stacktrace:INFO,logging:INFO,msgwriter:INFO,perf.*:DEBUG";
diff --git a/src/rpc/core_rpc_server.cpp b/src/rpc/core_rpc_server.cpp
index 062386087..213d9c702 100644
--- a/src/rpc/core_rpc_server.cpp
+++ b/src/rpc/core_rpc_server.cpp
@@ -270,25 +270,25 @@ namespace cryptonote
     {
       if (!m_restricted && nettype() != FAKECHAIN)
       {
-        MERROR("RPC payment enabled, but server is not restricted, anyone can adjust their balance to bypass payment");
+        MFATAL("RPC payment enabled, but server is not restricted, anyone can adjust their balance to bypass payment");
         return false;
       }
       cryptonote::address_parse_info info;
       if (!get_account_address_from_str(info, nettype(), address))
       {
-        MERROR("Invalid payment address: " << address);
+        MFATAL("Invalid payment address: " << address);
         return false;
       }
       if (info.is_subaddress)
       {
-        MERROR("Payment address may not be a subaddress: " << address);
+        MFATAL("Payment address may not be a subaddress: " << address);
         return false;
       }
       uint64_t diff = command_line::get_arg(vm, arg_rpc_payment_difficulty);
       uint64_t credits = command_line::get_arg(vm, arg_rpc_payment_credits);
       if (diff == 0 || credits == 0)
       {
-        MERROR("Payments difficulty and/or payments credits are 0, but a payment address was given");
+        MFATAL("Payments difficulty and/or payments credits are 0, but a payment address was given");
         return false;
       }
       m_rpc_payment_allow_free_loopback = command_line::get_arg(vm, arg_rpc_payment_allow_free_loopback);
@@ -308,7 +308,7 @@ namespace cryptonote
     if (!set_bootstrap_daemon(command_line::get_arg(vm, arg_bootstrap_daemon_address),
       command_line::get_arg(vm, arg_bootstrap_daemon_login)))
     {
-      MERROR("Failed to parse bootstrap daemon address");
+      MFATAL("Failed to parse bootstrap daemon address");
       return false;
     }