diff --git a/4ed_api_implementation.cpp b/4ed_api_implementation.cpp
index efafd13f..ace07291 100644
--- a/4ed_api_implementation.cpp
+++ b/4ed_api_implementation.cpp
@@ -3009,7 +3009,9 @@ DOC(Permanently frees the specified object.  Not only does this free up the memo
             if (*type == ManagedObjectType_Markers){
                 Managed_Buffer_Markers_Header *header = (Managed_Buffer_Markers_Header*)object_ptr;
                 workspace->total_marker_count -= header->std_header.count;
-                marker_visual_free_chain(&workspace->visual_allocator, header->visual_first, header->visual_last, header->visual_count);
+                if (header->visual_count > 0´){
+                    marker_visual_free_chain(&workspace->visual_allocator, header->visual_first, header->visual_last, header->visual_count);
+                }
                 zdll_remove(workspace->buffer_markers_list.first, workspace->buffer_markers_list.last, header);
                 workspace->buffer_markers_list.count -= 1;
             }
diff --git a/todo.txt b/todo.txt
index 61c78735..8f1259f0 100644
--- a/todo.txt
+++ b/todo.txt
@@ -10,13 +10,13 @@
     
     Bugs
     {
+        [x] Crash when freeing marker object without visuals
         [] High CPU usage in listers
         [] Panel resizing doesn't work
         [] Notepad like mode clicking to new view doesn't snap the mark
         [] Notepad like mode replacing text with cursor at end of selection in middle of long file
         [] Tab when no valid completions in open file lister
         [] Graphics problem (fonts not rendering)
-        [] Crash when freeing marker object without visuals
         [] Texture binding changes too often problem.
         [] SSHFS segfault on linux
         Repro Needed