diff --git a/desktop_version/src/editor.cpp b/desktop_version/src/editor.cpp
index 4db1b7d5..5330c2c5 100644
--- a/desktop_version/src/editor.cpp
+++ b/desktop_version/src/editor.cpp
@@ -3642,6 +3642,13 @@ void editorinput( KeyPoll& key, Graphics& dwgfx, Game& game, mapclass& map, enti
     game.my = (float) key.my;
     ed.tilex=(game.mx - (game.mx%8))/8;
     ed.tiley=(game.my - (game.my%8))/8;
+    if (game.stretchMode == 1) {
+        // In this mode specifically, we have to fix the mouse coordinates
+        int winwidth, winheight;
+        dwgfx.screenbuffer->GetWindowSize(&winwidth, &winheight);
+        ed.tilex = ed.tilex * 320 / winwidth;
+        ed.tiley = ed.tiley * 240 / winheight;
+    }
 
     game.press_left = false;
     game.press_right = false;