diff --git a/src/Backends/GLFW3/Misc.cpp b/src/Backends/GLFW3/Misc.cpp
index 42b7650e..50945b37 100644
--- a/src/Backends/GLFW3/Misc.cpp
+++ b/src/Backends/GLFW3/Misc.cpp
@@ -20,12 +20,12 @@
 
 #define DO_KEY(GLFW_KEY, BACKEND_KEY) \
 	case GLFW_KEY: \
-		backend_keyboard_state[BACKEND_KEY] = action == GLFW_PRESS; \
+		keyboard_state[BACKEND_KEY] = action == GLFW_PRESS; \
 		break;
 
 BOOL bActive = TRUE;
-BOOL backend_keyboard_state[BACKEND_KEYBOARD_TOTAL];
-BOOL backend_previous_keyboard_state[BACKEND_KEYBOARD_TOTAL];
+
+static BOOL keyboard_state[BACKEND_KEYBOARD_TOTAL];
 
 static GLFWcursor* cursor;
 
@@ -272,6 +272,11 @@ BOOL Backend_SystemTask(void)
 	return TRUE;
 }
 
+void Backend_GetKeyboardState(BOOL *out_keyboard_state)
+{
+	memcpy(out_keyboard_state, keyboard_state, sizeof(keyboard_state));
+}
+
 void Backend_ShowMessageBox(const char *title, const char *message)
 {
 	// GLFW3 doesn't have a message box
diff --git a/src/Backends/Misc.h b/src/Backends/Misc.h
index d69f33d8..7cdf3d2f 100644
--- a/src/Backends/Misc.h
+++ b/src/Backends/Misc.h
@@ -84,7 +84,6 @@ enum
 };
 
 extern BOOL bActive;
-extern BOOL backend_keyboard_state[BACKEND_KEYBOARD_TOTAL];
 
 void Backend_Init(void);
 void Backend_Deinit(void);
@@ -95,6 +94,7 @@ void Backend_SetWindowIcon(const unsigned char *rgb_pixels, unsigned int width,
 void Backend_SetCursor(const unsigned char *rgb_pixels, unsigned int width, unsigned int height);
 void PlaybackBackend_EnableDragAndDrop(void);
 BOOL Backend_SystemTask(void);
+void Backend_GetKeyboardState(BOOL *keyboard_state);
 void Backend_ShowMessageBox(const char *title, const char *message);
 unsigned long Backend_GetTicks(void);
 void Backend_Delay(unsigned int ticks);
diff --git a/src/Backends/SDL2/Misc.cpp b/src/Backends/SDL2/Misc.cpp
index 8b1ad40a..0beec4b9 100644
--- a/src/Backends/SDL2/Misc.cpp
+++ b/src/Backends/SDL2/Misc.cpp
@@ -18,12 +18,12 @@
 
 #define DO_KEY(SDL_KEY, BACKEND_KEY) \
 	case SDL_KEY: \
-		backend_keyboard_state[BACKEND_KEY] = event.key.type == SDL_KEYDOWN; \
+		keyboard_state[BACKEND_KEY] = event.key.type == SDL_KEYDOWN; \
 		break;
 
 BOOL bActive = TRUE;
-BOOL backend_keyboard_state[BACKEND_KEYBOARD_TOTAL];
-BOOL backend_previous_keyboard_state[BACKEND_KEYBOARD_TOTAL];
+
+static BOOL keyboard_state[BACKEND_KEYBOARD_TOTAL];
 
 static SDL_Surface *cursor_surface;
 static SDL_Cursor *cursor;
@@ -238,6 +238,11 @@ BOOL Backend_SystemTask(void)
 	return TRUE;
 }
 
+void Backend_GetKeyboardState(BOOL *out_keyboard_state)
+{
+	memcpy(out_keyboard_state, keyboard_state, sizeof(keyboard_state));
+}
+
 void Backend_ShowMessageBox(const char *title, const char *message)
 {
 	SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, title, message, window);
diff --git a/src/Main.cpp b/src/Main.cpp
index 2261f68f..4979237e 100644
--- a/src/Main.cpp
+++ b/src/Main.cpp
@@ -390,9 +390,12 @@ BOOL SystemTask(void)
 	if (!Backend_SystemTask())
 		return FALSE;
 
+	BOOL keyboard_state[BACKEND_KEYBOARD_TOTAL];
+	Backend_GetKeyboardState(keyboard_state);
+
 	for (unsigned int i = 0; i < BACKEND_KEYBOARD_TOTAL; ++i)
 	{
-		if (backend_keyboard_state[i] && !previous_keyboard_state[i])
+		if (keyboard_state[i] && !previous_keyboard_state[i])
 		{
 			switch (i)
 			{
@@ -478,7 +481,7 @@ BOOL SystemTask(void)
 					break;
 			}
 		}
-		else if (!backend_keyboard_state[i] && previous_keyboard_state[i])
+		else if (!keyboard_state[i] && previous_keyboard_state[i])
 		{
 			switch (i)
 			{
@@ -562,7 +565,7 @@ BOOL SystemTask(void)
 		}
 	}
 
-	memcpy(previous_keyboard_state, backend_keyboard_state, sizeof(backend_keyboard_state));
+	memcpy(previous_keyboard_state, keyboard_state, sizeof(keyboard_state));
 
 	// Run joystick code
 	if (gbUseJoystick)