diff --git a/src/IP_Edit.cpp b/src/IP_Edit.cpp
index 5b84703..a1d5c72 100644
--- a/src/IP_Edit.cpp
+++ b/src/IP_Edit.cpp
@@ -74,7 +74,7 @@ void CustomLineEdit::keyPressEvent(QKeyEvent* event)
   }
 
   // Jump forward from last postion by right arrow
-  if (cursorPos == text().count()) {
+  if (cursorPos == text().length()) {
     if (key == Qt::Key_Right) {
       emit jumpForward();
       event->accept();
diff --git a/src/System_Info.cpp b/src/System_Info.cpp
index 5afaa2e..cc7fbd1 100644
--- a/src/System_Info.cpp
+++ b/src/System_Info.cpp
@@ -2577,7 +2577,7 @@ bool System_Info::Scan_USB_Proc(QList<VM_USB>& list)
 #include <QDir>
 #include <QFileInfoList>
 
-void System_Info::Get_Free_Memory_Size(int& allRAM, int& freeRAM)
+void System_Info::Get_Free_Memory_Size(size_t& allRAM, size_t& freeRAM)
 {
   // proc fs is exists?
   if (QFile::exists("/proc/meminfo")) {
@@ -2585,7 +2585,7 @@ void System_Info::Get_Free_Memory_Size(int& allRAM, int& freeRAM)
 
     if (!proc_file.open(QIODevice::ReadOnly | QIODevice::Text)) {
       AQDebug("int System_Info::Get_Free_Memory_Size()",
-              "void System_Info::Get_Free_Memory_Size( int &allRAM, int "
+              "void System_Info::Get_Free_Memory_Size( size_t &allRAM, size_t "
               "&freeRAM )");
     }
     else {
diff --git a/src/main.h b/src/main.h
index dba587a..9d5c00b 100644
--- a/src/main.h
+++ b/src/main.h
@@ -56,7 +56,7 @@ class AQEMU_Main : public QObject
         void upgrade_settings();
         int find_data_folders();
         void log_settings();
-        static int root_warning();
+        int root_warning();
         void vm_dir_exists_or_create();
 
         std::unique_ptr<QSettings> settings;