diff --git a/src/openrct2/platform/Posix.cpp b/src/openrct2/platform/Posix.cpp
index 282f0d2c79..d266db5350 100644
--- a/src/openrct2/platform/Posix.cpp
+++ b/src/openrct2/platform/Posix.cpp
@@ -374,29 +374,6 @@ bool platform_file_delete(const utf8 *path)
     return ret == 0;
 }
 
-static wchar_t *regular_to_wchar(const char* src)
-{
-    sint32 len = strnlen(src, MAX_PATH);
-    wchar_t * w_buffer = (wchar_t *)malloc((len + 1) * sizeof(wchar_t));
-    mbtowc (NULL, NULL, 0);  /* reset mbtowc */
-
-    sint32 max = len;
-    sint32 i = 0;
-    while (max > 0)
-    {
-        sint32 length;
-        length = mbtowc(&w_buffer[i], &src[i], max);
-        if (length < 1)
-        {
-            w_buffer[i + 1] = '\0';
-            break;
-        }
-        i += length;
-        max -= length;
-    }
-    return w_buffer;
-}
-
 time_t platform_file_get_modified_time(const utf8* path){
     struct stat buf;
     if (stat(path, &buf) == 0) {