diff --git a/include/fluent_tray.hpp b/include/fluent_tray.hpp
index b3cd874..a608c92 100644
--- a/include/fluent_tray.hpp
+++ b/include/fluent_tray.hpp
@@ -943,7 +943,7 @@ namespace fluent_tray
 
             if(pos.x != previous_mouse_pos_.x || pos.y != previous_mouse_pos_.y) {
                 // The mouse cursor is moved, so switch to the mouse-mode.
-                for(int i = 0 ; i < menus_.size() ; i ++) {
+                for(int i = 0 ; i < static_cast<int>(menus_.size()) ; i ++) {
                     auto& menu = menus_[i] ;
                     auto detected_hwnd = WindowFromPoint(pos) ;
                     if(!detected_hwnd) {
@@ -964,7 +964,7 @@ namespace fluent_tray
             }
 
             // Update the color of only changed menu.
-            for(int i = 0 ; i < menus_.size() ; i ++) {
+            for(int i = 0 ; i < static_cast<int>(menus_.size()) ; i ++) {
                 if(i == select_index_) {
                     if(!status_if_focus[i]) {
                         // OFF -> ON
diff --git a/tests/menu_test.cpp b/tests/menu_test.cpp
index 31d9770..8cfb186 100644
--- a/tests/menu_test.cpp
+++ b/tests/menu_test.cpp
@@ -14,8 +14,6 @@ TEST_CASE("FluentMenu Test: ") {
         std::string str{} ;
         CHECK(menu.get_label(str)) ;
         CHECK(str.empty()) ;
-
-        CHECK_FALSE(menu.is_mouse_over()) ;
     }
 
     SUBCASE("Error Check: create_menu") {