diff --git a/src/addrdb.h b/src/addrdb.h
--- a/src/addrdb.h
+++ b/src/addrdb.h
@@ -7,6 +7,7 @@
 #define BITCOIN_ADDRDB_H
 
 #include <fs.h>
+#include <net_types.h> // For banmap_t
 #include <serialize.h>
 
 #include <map>
@@ -50,8 +51,6 @@
     }
 };
 
-typedef std::map<CSubNet, CBanEntry> banmap_t;
-
 /** Access to the (IP) address database (peers.dat) */
 class CAddrDB {
 private:
diff --git a/src/banman.h b/src/banman.h
--- a/src/banman.h
+++ b/src/banman.h
@@ -8,6 +8,7 @@
 #include <addrdb.h>
 #include <bloom.h>
 #include <fs.h>
+#include <net_types.h> // For banmap_t
 #include <sync.h>
 
 #include <chrono>
diff --git a/src/interfaces/node.h b/src/interfaces/node.h
--- a/src/interfaces/node.h
+++ b/src/interfaces/node.h
@@ -5,10 +5,11 @@
 #ifndef BITCOIN_INTERFACES_NODE_H
 #define BITCOIN_INTERFACES_NODE_H
 
-#include <addrdb.h>                    // For banmap_t
-#include <amount.h>                    // For Amount
-#include <net.h>                       // For CConnman::NumConnections
-#include <netaddress.h>                // For Network
+#include <amount.h>     // For Amount
+#include <net.h>        // For CConnman::NumConnections
+#include <net_types.h>  // For banmap_t
+#include <netaddress.h> // For Network
+
 #include <support/allocators/secure.h> // For SecureString
 
 #include <cstddef>
diff --git a/src/net_types.h b/src/net_types.h
new file mode 100644
--- /dev/null
+++ b/src/net_types.h
@@ -0,0 +1,15 @@
+// Copyright (c) 2019 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_NET_TYPES_H
+#define BITCOIN_NET_TYPES_H
+
+#include <map>
+
+class CBanEntry;
+class CSubNet;
+
+using banmap_t = std::map<CSubNet, CBanEntry>;
+
+#endif // BITCOIN_NET_TYPES_H
diff --git a/src/qt/bantablemodel.cpp b/src/qt/bantablemodel.cpp
--- a/src/qt/bantablemodel.cpp
+++ b/src/qt/bantablemodel.cpp
@@ -4,9 +4,9 @@
 
 #include <qt/bantablemodel.h>
 
-#include <qt/clientmodel.h>
-
 #include <interfaces/node.h>
+#include <net_types.h> // For banmap_t
+#include <qt/clientmodel.h>
 
 #include <algorithm>
 
diff --git a/src/rpc/net.cpp b/src/rpc/net.cpp
--- a/src/rpc/net.cpp
+++ b/src/rpc/net.cpp
@@ -11,6 +11,7 @@
 #include <net.h>
 #include <net_permissions.h>
 #include <net_processing.h>
+#include <net_types.h> // For banmap_t
 #include <netbase.h>
 #include <node/context.h>
 #include <policy/settings.h>