diff --git a/src/openrct2-ui/input/input.c b/src/openrct2-ui/input/input.c
index 088ebb1113..ae363ec8f6 100644
--- a/src/openrct2-ui/input/input.c
+++ b/src/openrct2-ui/input/input.c
@@ -99,6 +99,19 @@ static void game_handle_key_scroll()
     }
 }
 
+static sint32 input_scancode_to_rct_keycode(sint32 sdl_key)
+{
+    char keycode = (char)SDL_GetKeyFromScancode((SDL_Scancode)sdl_key);
+
+    // Until we reshuffle the text files to use the new positions
+    // this will suffice to move the majority to the correct positions.
+    // Note any special buttons PgUp PgDwn are mapped wrong.
+    if (keycode >= 'a' && keycode <= 'z')
+        keycode = toupper(keycode);
+
+    return keycode;
+}
+
 void input_handle_keyboard(bool isTitle)
 {
     if (gOpenRCT2Headless) {
@@ -162,7 +175,8 @@ void input_handle_keyboard(bool isTitle)
 
         rct_window * w = window_find_by_class(WC_TEXTINPUT);
         if (w != NULL) {
-            window_text_input_key(w, key);
+            char keychar = input_scancode_to_rct_keycode(key & 0xFF);
+            window_text_input_key(w, keychar);
         } else if (!gUsingWidgetTextBox) {
             w = window_find_by_class(WC_CHANGE_KEYBOARD_SHORTCUT);
             if (w != NULL) {
diff --git a/src/openrct2/interface/window.h b/src/openrct2/interface/window.h
index 2d634391ee..7e3d81af0b 100644
--- a/src/openrct2/interface/window.h
+++ b/src/openrct2/interface/window.h
@@ -656,7 +656,7 @@ void window_zoom_out(rct_window *w, bool atCursor);
 void main_window_zoom(bool zoomIn, bool atCursor);
 
 void window_show_textinput(rct_window *w, rct_widgetindex widgetIndex, uint16 title, uint16 text, sint32 value);
-void window_text_input_key(rct_window* w, sint32 key);
+void window_text_input_key(rct_window* w, char keychar);
 
 void window_draw_all(rct_drawpixelinfo *dpi, sint16 left, sint16 top, sint16 right, sint16 bottom);
 void window_draw(rct_drawpixelinfo *dpi, rct_window *w, sint32 left, sint32 top, sint32 right, sint32 bottom);
diff --git a/src/openrct2/platform/platform.h b/src/openrct2/platform/platform.h
index ccb90bd2c0..01e402b095 100644
--- a/src/openrct2/platform/platform.h
+++ b/src/openrct2/platform/platform.h
@@ -107,7 +107,6 @@ void platform_free();
 void platform_update_palette(const uint8 *colours, sint32 start_index, sint32 num_colours);
 void platform_toggle_windowed_mode();
 void platform_refresh_video();
-sint32 platform_scancode_to_rct_keycode(sint32 sdl_key);
 void platform_get_date_utc(rct2_date *out_date);
 void platform_get_time_utc(rct2_time *out_time);
 void platform_get_date_local(rct2_date *out_date);
diff --git a/src/openrct2/platform/posix.c b/src/openrct2/platform/posix.c
index 4046ff8a11..563c78366b 100644
--- a/src/openrct2/platform/posix.c
+++ b/src/openrct2/platform/posix.c
@@ -25,7 +25,6 @@
 #include <sys/time.h>
 #include <pwd.h>
 #include <time.h>
-#include <SDL_syswm.h>
 #include "../config/Config.h"
 #include "../localisation/date.h"
 #include "../localisation/language.h"
diff --git a/src/openrct2/platform/shared.c b/src/openrct2/platform/shared.c
index 6cbcd3856d..98f7f35d90 100644
--- a/src/openrct2/platform/shared.c
+++ b/src/openrct2/platform/shared.c
@@ -135,19 +135,6 @@ void platform_init()
     gPalette[255].blue = 255;
 }
 
-sint32 platform_scancode_to_rct_keycode(sint32 sdl_key)
-{
-    char keycode = (char)SDL_GetKeyFromScancode((SDL_Scancode)sdl_key);
-
-    // Until we reshuffle the text files to use the new positions
-    // this will suffice to move the majority to the correct positions.
-    // Note any special buttons PgUp PgDwn are mapped wrong.
-    if (keycode >= 'a' && keycode <= 'z')
-        keycode = toupper(keycode);
-
-    return keycode;
-}
-
 void platform_free()
 {
     // free(gKeysPressed);
diff --git a/src/openrct2/windows/text_input.c b/src/openrct2/windows/text_input.c
index 758010c78d..09f0477dd2 100644
--- a/src/openrct2/windows/text_input.c
+++ b/src/openrct2/windows/text_input.c
@@ -331,12 +331,10 @@ static void window_text_input_paint(rct_window *w, rct_drawpixelinfo *dpi)
     }
 }
 
-void window_text_input_key(rct_window* w, sint32 key)
+void window_text_input_key(rct_window* w, char keychar)
 {
-    char new_char = platform_scancode_to_rct_keycode(0xFF&key);
-
     // If the return button is pressed stop text input
-    if (new_char == '\r'){
+    if (keychar == '\r'){
         context_stop_text_input();
         window_close(w);
         rct_window* calling_w = window_find_by_number(calling_class, calling_number);