diff --git a/gdlibretro/src/Input.cpp b/gdlibretro/src/Input.cpp
index caf1e6d..37ee94c 100644
--- a/gdlibretro/src/Input.cpp
+++ b/gdlibretro/src/Input.cpp
@@ -53,9 +53,12 @@ void RetroHost::forwarded_input( const godot::Ref<godot::InputEvent> &event )
         if(retro_key > RETROK_LAST)
             return;
 
-        this->core.retro_keyboard_event_callback( key_event->is_pressed(), retro_key,
-                                                  0, modifiers );
-        
+        if (this->core.retro_keyboard_event_callback) {
+            this->core.retro_keyboard_event_callback(key_event->is_pressed(), retro_key, 0, modifiers);
+        } else {
+            godot::UtilityFunctions::printerr("[RetroHost] retro_keyboard_event_callback is not set.");
+        }
+
         keyboard_state[retro_key] = key_event->is_pressed();
     }
 }
\ No newline at end of file
diff --git a/gdlibretro/src/RetroHost.cpp b/gdlibretro/src/RetroHost.cpp
index 6a77847..5dd7444 100644
--- a/gdlibretro/src/RetroHost.cpp
+++ b/gdlibretro/src/RetroHost.cpp
@@ -141,6 +141,7 @@ bool RetroHost::load_core(godot::String name)
     load_symbol_return_false_on_err(this->core.handle, this->core.retro_run, retro_run);
     load_symbol_return_false_on_err(this->core.handle, this->core.retro_load_game, retro_load_game);
     load_symbol_return_false_on_err(this->core.handle, this->core.retro_unload_game, retro_unload_game);
+    load_symbol_return_false_on_err(this->core.handle, this->core.retro_keyboard_event_callback, retro_keyboard_event_callback);
 
     godot::UtilityFunctions::print("[RetroHost] All symbols loaded successfully.");
 
diff --git a/gdlibretro/src/RetroHost.hpp b/gdlibretro/src/RetroHost.hpp
index 414ad9b..3834f8c 100644
--- a/gdlibretro/src/RetroHost.hpp
+++ b/gdlibretro/src/RetroHost.hpp
@@ -116,7 +116,7 @@ private:
         bool (*retro_load_game)(const struct retro_game_info *game);
         void (*retro_unload_game)(void);
 
-        retro_keyboard_event_t retro_keyboard_event_callback;
+        retro_keyboard_event_t retro_keyboard_event_callback = nullptr;
     } core;
 
 protected: