diff --git a/src/hid_core/resources/applet_resource.h b/src/hid_core/resources/applet_resource.h
index 4a5416fb29..69ea46b957 100644
--- a/src/hid_core/resources/applet_resource.h
+++ b/src/hid_core/resources/applet_resource.h
@@ -119,7 +119,7 @@ private:
     std::array<AruidData, AruidIndexMax> data{};
     std::array<SharedMemoryHolder, AruidIndexMax> shared_memory_holder{};
     s32 ref_counter{};
-    u64 active_vibration_aruid;
+    u64 active_vibration_aruid = 0;
 
     Core::System& system;
 };
diff --git a/src/input_common/drivers/mouse.h b/src/input_common/drivers/mouse.h
index 2b93a40b9c..124b6f3bd5 100644
--- a/src/input_common/drivers/mouse.h
+++ b/src/input_common/drivers/mouse.h
@@ -108,7 +108,7 @@ private:
     Common::Vec2<float> last_mouse_change;
     Common::Vec3<float> last_motion_change;
     Common::Vec2<int> wheel_position;
-    bool button_pressed;
+    bool button_pressed = false;
     std::jthread update_thread;
 };