diff --git a/src/Makefile.am b/src/Makefile.am
index 175501d4a6..61ae49df31 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -262,10 +262,10 @@ BITCOIN_CORE_H = \
   walletinitinterface.h \
   warnings.h \
   zmq/zmqabstractnotifier.h \
-  zmq/zmqconfig.h\
   zmq/zmqnotificationinterface.h \
   zmq/zmqpublishnotifier.h \
-  zmq/zmqrpc.h
+  zmq/zmqrpc.h \
+  zmq/zmqutil.h
 
 
 obj/build.h: FORCE
@@ -344,7 +344,8 @@ libbitcoin_zmq_a_SOURCES = \
   zmq/zmqabstractnotifier.cpp \
   zmq/zmqnotificationinterface.cpp \
   zmq/zmqpublishnotifier.cpp \
-  zmq/zmqrpc.cpp
+  zmq/zmqrpc.cpp \
+  zmq/zmqutil.cpp
 endif
 
 
diff --git a/src/zmq/zmqabstractnotifier.cpp b/src/zmq/zmqabstractnotifier.cpp
index aae760adde..0d0428f3c0 100644
--- a/src/zmq/zmqabstractnotifier.cpp
+++ b/src/zmq/zmqabstractnotifier.cpp
@@ -4,6 +4,8 @@
 
 #include <zmq/zmqabstractnotifier.h>
 
+#include <cassert>
+
 const int CZMQAbstractNotifier::DEFAULT_ZMQ_SNDHWM;
 
 CZMQAbstractNotifier::~CZMQAbstractNotifier()
diff --git a/src/zmq/zmqabstractnotifier.h b/src/zmq/zmqabstractnotifier.h
index 8377a26d3a..34d7e5ef03 100644
--- a/src/zmq/zmqabstractnotifier.h
+++ b/src/zmq/zmqabstractnotifier.h
@@ -5,13 +5,13 @@
 #ifndef BITCOIN_ZMQ_ZMQABSTRACTNOTIFIER_H
 #define BITCOIN_ZMQ_ZMQABSTRACTNOTIFIER_H
 
-#include <zmq/zmqconfig.h>
-
 #include <util/memory.h>
 
 #include <memory>
+#include <string>
 
 class CBlockIndex;
+class CTransaction;
 class CZMQAbstractNotifier;
 
 using CZMQNotifierFactory = std::unique_ptr<CZMQAbstractNotifier> (*)();
diff --git a/src/zmq/zmqconfig.h b/src/zmq/zmqconfig.h
deleted file mode 100644
index 5f0036206d..0000000000
--- a/src/zmq/zmqconfig.h
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2014-2019 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_ZMQ_ZMQCONFIG_H
-#define BITCOIN_ZMQ_ZMQCONFIG_H
-
-#if defined(HAVE_CONFIG_H)
-#include <config/bitcoin-config.h>
-#endif
-
-#include <stdarg.h>
-
-#if ENABLE_ZMQ
-#include <zmq.h>
-#endif
-
-#include <primitives/transaction.h>
-
-void zmqError(const char *str);
-
-#endif // BITCOIN_ZMQ_ZMQCONFIG_H
diff --git a/src/zmq/zmqnotificationinterface.cpp b/src/zmq/zmqnotificationinterface.cpp
index 9e9acdc568..a22772baed 100644
--- a/src/zmq/zmqnotificationinterface.cpp
+++ b/src/zmq/zmqnotificationinterface.cpp
@@ -4,15 +4,13 @@
 
 #include <zmq/zmqnotificationinterface.h>
 #include <zmq/zmqpublishnotifier.h>
+#include <zmq/zmqutil.h>
+
+#include <zmq.h>
 
 #include <validation.h>
 #include <util/system.h>
 
-void zmqError(const char *str)
-{
-    LogPrint(BCLog::ZMQ, "zmq: Error: %s, errno=%s\n", str, zmq_strerror(errno));
-}
-
 CZMQNotificationInterface::CZMQNotificationInterface() : pcontext(nullptr)
 {
 }
diff --git a/src/zmq/zmqpublishnotifier.cpp b/src/zmq/zmqpublishnotifier.cpp
index aaef12ebcf..2484fd6988 100644
--- a/src/zmq/zmqpublishnotifier.cpp
+++ b/src/zmq/zmqpublishnotifier.cpp
@@ -2,13 +2,15 @@
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
+#include <zmq/zmqpublishnotifier.h>
+
 #include <chain.h>
 #include <chainparams.h>
+#include <rpc/server.h>
 #include <streams.h>
-#include <zmq/zmqpublishnotifier.h>
-#include <validation.h>
 #include <util/system.h>
-#include <rpc/server.h>
+#include <validation.h>
+#include <zmq/zmqutil.h>
 
 #include <zmq.h>
 
diff --git a/src/zmq/zmqutil.cpp b/src/zmq/zmqutil.cpp
new file mode 100644
index 0000000000..f07a4ae9fd
--- /dev/null
+++ b/src/zmq/zmqutil.cpp
@@ -0,0 +1,14 @@
+// Copyright (c) 2014-2018 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <zmq/zmqutil.h>
+
+#include <logging.h>
+
+#include <zmq.h>
+
+void zmqError(const char* str)
+{
+    LogPrint(BCLog::ZMQ, "zmq: Error: %s, errno=%s\n", str, zmq_strerror(errno));
+}
diff --git a/src/zmq/zmqutil.h b/src/zmq/zmqutil.h
new file mode 100644
index 0000000000..4c1df5d6db
--- /dev/null
+++ b/src/zmq/zmqutil.h
@@ -0,0 +1,10 @@
+// Copyright (c) 2014-2018 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_ZMQ_ZMQUTIL_H
+#define BITCOIN_ZMQ_ZMQUTIL_H
+
+void zmqError(const char* str);
+
+#endif // BITCOIN_ZMQ_ZMQUTIL_H