diff --git a/desktop_version/src/Textbox.cpp b/desktop_version/src/Textbox.cpp
index 8cd0d63e..f08f11a9 100644
--- a/desktop_version/src/Textbox.cpp
+++ b/desktop_version/src/Textbox.cpp
@@ -1,9 +1,9 @@
 #include "Textbox.h"
 
 #include <SDL.h>
-#include <utf8/unchecked.h>
 
 #include "Font.h"
+#include "UTF8.h"
 
 textboxclass::textboxclass(void)
 {
@@ -145,7 +145,7 @@ void textboxclass::padtowidth(size_t new_w)
     size_t chars_w = SDL_max(w-16, new_w) / glyph_w;
     for (size_t iter = 0; iter < lines.size(); iter++)
     {
-        size_t n_glyphs = utf8::unchecked::distance(lines[iter].begin(), lines[iter].end());
+        size_t n_glyphs = UTF8_total_codepoints(lines[iter].c_str());
         signed int padding_needed = chars_w - n_glyphs;
         if (padding_needed < 0)
         {