3 files changed, 5 insertions, 5 deletions
diff --git a/src/qt/bitcoin.cpp b/src/qt/bitcoin.cpp
index 87282a961f..1e950e2686 100644
--- a/src/qt/bitcoin.cpp
+++ b/src/qt/bitcoin.cpp
@@ -586,7 +586,7 @@ int main(int argc, char *argv[])
     //   Need to pass name here as CAmount is a typedef (see http://qt-project.org/doc/qt-5/qmetatype.html#qRegisterMetaType)
     //   IMPORTANT if it is no longer a typedef use the normal variant above
     qRegisterMetaType< CAmount >("CAmount");
-    qRegisterMetaType< std::function<void(void)> >("std::function<void(void)>");
+    qRegisterMetaType< std::function<void()> >("std::function<void()>");
 #ifdef ENABLE_WALLET
     qRegisterMetaType<WalletModel*>("WalletModel*");
 #endif
diff --git a/src/qt/macnotificationhandler.h b/src/qt/macnotificationhandler.h
index 23993adc2e..03c744c12e 100644
--- a/src/qt/macnotificationhandler.h
+++ b/src/qt/macnotificationhandler.h
@@ -19,7 +19,7 @@ public:
     void showNotification(const QString &title, const QString &text);
 
     /** check if OS can handle UserNotifications */
-    bool hasUserNotificationCenterSupport(void);
+    bool hasUserNotificationCenterSupport();
     static MacNotificationHandler *instance();
 };
 
diff --git a/src/qt/rpcconsole.cpp b/src/qt/rpcconsole.cpp
index ad13b20ebe..3857befdf2 100644
--- a/src/qt/rpcconsole.cpp
+++ b/src/qt/rpcconsole.cpp
@@ -101,7 +101,7 @@ class QtRPCTimerBase: public QObject, public RPCTimerBase
 {
     Q_OBJECT
 public:
-    QtRPCTimerBase(std::function<void(void)>& _func, int64_t millis):
+    QtRPCTimerBase(std::function<void()>& _func, int64_t millis):
         func(_func)
     {
         timer.setSingleShot(true);
@@ -111,7 +111,7 @@ public:
     ~QtRPCTimerBase() {}
 private:
     QTimer timer;
-    std::function<void(void)> func;
+    std::function<void()> func;
 };
 
 class QtRPCTimerInterface: public RPCTimerInterface
@@ -119,7 +119,7 @@ class QtRPCTimerInterface: public RPCTimerInterface
 public:
     ~QtRPCTimerInterface() {}
     const char *Name() { return "Qt"; }
-    RPCTimerBase* NewTimer(std::function<void(void)>& func, int64_t millis)
+    RPCTimerBase* NewTimer(std::function<void()>& func, int64_t millis)
     {
         return new QtRPCTimerBase(func, millis);
     }