diff --git a/source/input.cpp b/source/input.cpp
index 99b99ec..eea194e 100644
--- a/source/input.cpp
+++ b/source/input.cpp
@@ -437,7 +437,7 @@ void Input::update()
 	// --- TECLADO ---
 	const bool *key_states = SDL_GetKeyboardState(nullptr);
 
-	for (int i = 0; i < key_bindings_.size(); ++i)
+	for (size_t i = 0; i < key_bindings_.size(); ++i)
 	{
 		bool key_is_down_now = key_states[key_bindings_[i].scancode];
 
@@ -449,7 +449,7 @@ void Input::update()
 	// --- MANDOS ---
 	for (int c = 0; c < num_gamepads_; ++c)
 	{
-		for (int i = 0; i < controller_bindings_[c].size(); ++i)
+		for (size_t i = 0; i < controller_bindings_[c].size(); ++i)
 		{
 			bool button_is_down_now = SDL_GetGamepadButton(connected_controllers_.at(c), controller_bindings_.at(c).at(i).button) != 0;