diff --git a/rbutil/rbutilqt/sysinfo.cpp b/rbutil/rbutilqt/sysinfo.cpp
index 9160ce9d9a..7d05bb8c9a 100644
--- a/rbutil/rbutilqt/sysinfo.cpp
+++ b/rbutil/rbutilqt/sysinfo.cpp
@@ -30,8 +30,8 @@ Sysinfo::Sysinfo(QWidget *parent) : QDialog(parent)
     ui.setupUi(this);
 
     updateSysinfo();
-    connect(ui.buttonOk, SIGNAL(clicked()), this, SLOT(close()));
-    connect(ui.buttonRefresh, SIGNAL(clicked()), this, SLOT(updateSysinfo()));
+    connect(ui.buttonOk, &QAbstractButton::clicked, this, &Sysinfo::close);
+    connect(ui.buttonRefresh, &QAbstractButton::clicked, this, &Sysinfo::updateSysinfo);
 }
 
 void Sysinfo::updateSysinfo(void)
diff --git a/rbutil/rbutilqt/systrace.cpp b/rbutil/rbutilqt/systrace.cpp
index ba7f1e30e3..a20056b508 100644
--- a/rbutil/rbutilqt/systrace.cpp
+++ b/rbutil/rbutilqt/systrace.cpp
@@ -32,10 +32,10 @@ SysTrace::SysTrace(QWidget *parent) : QDialog(parent)
     ui.textTrace->setLayoutDirection(Qt::LeftToRight);
     refresh();
 
-    connect(ui.buttonClose, SIGNAL(clicked()), this, SLOT(close()));
-    connect(ui.buttonSave, SIGNAL(clicked()), this, SLOT(saveCurrentTrace()));
-    connect(ui.buttonSavePrevious, SIGNAL(clicked()), this, SLOT(savePreviousTrace()));
-    connect(ui.buttonRefresh, SIGNAL(clicked()), this, SLOT(refresh()));
+    connect(ui.buttonClose, &QAbstractButton::clicked,  this, &SysTrace::close);
+    connect(ui.buttonSave, &QAbstractButton::clicked,  this, &SysTrace::saveCurrentTrace);
+    connect(ui.buttonSavePrevious, &QAbstractButton::clicked,  this, &SysTrace::savePreviousTrace);
+    connect(ui.buttonRefresh, &QAbstractButton::clicked,  this, &SysTrace::refresh);
 }
 
 void SysTrace::refresh(void)