diff --git a/src/terminal.cc b/src/terminal.cc
index f703239..249cda7 100644
--- a/src/terminal.cc
+++ b/src/terminal.cc
@@ -282,7 +282,7 @@ void Terminal::kill_async_executes(bool force) {
   async_executes_mutex.unlock();
 }
 
-int Terminal::print(const std::string &message, bool bold){
+size_t Terminal::print(const std::string &message, bool bold){
   Glib::ustring umessage=message;
   Glib::ustring::iterator iter;
   while(!umessage.validate(iter)) {
@@ -309,11 +309,11 @@ int Terminal::print(const std::string &message, bool bold){
     deleted_lines+=static_cast<size_t>(lines);
   }
   
-  return static_cast<int>(static_cast<size_t>(get_buffer()->end().get_line())+deleted_lines);
+  return static_cast<size_t>(get_buffer()->end().get_line())+deleted_lines;
 }
 
-void Terminal::print(int line_nr, const std::string &message){
-  if(static_cast<size_t>(line_nr)<deleted_lines)
+void Terminal::print(size_t line_nr, const std::string &message){
+  if(line_nr<deleted_lines)
     return;
   
   Glib::ustring umessage=message;
@@ -324,7 +324,7 @@ void Terminal::print(int line_nr, const std::string &message){
     umessage.replace(iter, next_char_iter, "?");
   }
   
-  auto end_line_iter=get_buffer()->get_iter_at_line(static_cast<int>(static_cast<size_t>(line_nr)-deleted_lines));
+  auto end_line_iter=get_buffer()->get_iter_at_line(static_cast<int>(line_nr-deleted_lines));
   while(!end_line_iter.ends_line() && end_line_iter.forward_char()) {}
   get_buffer()->insert(end_line_iter, umessage);
   
diff --git a/src/terminal.h b/src/terminal.h
index 3bdf068..e7315a3 100644
--- a/src/terminal.h
+++ b/src/terminal.h
@@ -26,7 +26,7 @@ public:
     void cancel(const std::string& msg);
   private:
     void start(const std::string& msg);
-    int line_nr;
+    size_t line_nr;
     std::atomic<bool> stop;
     Glib::Dispatcher waiting_print;
     std::thread wait_thread;
@@ -38,8 +38,8 @@ public:
   void kill_last_async_execute(bool force=false);
   void kill_async_executes(bool force=false);
   
-  int print(const std::string &message, bool bold=false);
-  void print(int line_nr, const std::string &message);
+  size_t print(const std::string &message, bool bold=false);
+  void print(size_t line_nr, const std::string &message);
   std::shared_ptr<InProgress> print_in_progress(std::string start_msg);
   void async_print(const std::string &message, bool bold=false);
   void async_print(int line_nr, const std::string &message);
diff --git a/src/terminal_win.cc b/src/terminal_win.cc
index 9de10c6..1296b45 100644
--- a/src/terminal_win.cc
+++ b/src/terminal_win.cc
@@ -331,7 +331,7 @@ void Terminal::kill_async_executes(bool force) {
   async_executes_mutex.unlock();
 }
 
-int Terminal::print(const std::string &message, bool bold){
+size_t Terminal::print(const std::string &message, bool bold){
   Glib::ustring umessage=message;
   Glib::ustring::iterator iter;
   while(!umessage.validate(iter)) {
@@ -358,11 +358,11 @@ int Terminal::print(const std::string &message, bool bold){
     deleted_lines+=static_cast<size_t>(lines);
   }
   
-  return static_cast<int>(static_cast<size_t>(get_buffer()->end().get_line())+deleted_lines);
+  return static_cast<size_t>(get_buffer()->end().get_line())+deleted_lines;
 }
 
-void Terminal::print(int line_nr, const std::string &message){
-  if(static_cast<size_t>(line_nr)<deleted_lines)
+void Terminal::print(size_t line_nr, const std::string &message){
+  if(line_nr<deleted_lines)
     return;
   
   Glib::ustring umessage=message;
@@ -373,7 +373,7 @@ void Terminal::print(int line_nr, const std::string &message){
     umessage.replace(iter, next_char_iter, "?");
   }
   
-  auto end_line_iter=get_buffer()->get_iter_at_line(static_cast<int>(static_cast<size_t>(line_nr)-deleted_lines));
+  auto end_line_iter=get_buffer()->get_iter_at_line(static_cast<int>(line_nr-deleted_lines));
   while(!end_line_iter.ends_line() && end_line_iter.forward_char()) {}
   get_buffer()->insert(end_line_iter, umessage);