diff --git a/gtm b/gtm
index 8c09a8e..08dbf6f 100755
--- a/gtm
+++ b/gtm
@@ -117,7 +117,7 @@ def get_diff_info(current_commit, prev_commit, filename):
     
     return added_lines, deleted_lines
 
-def main(stdscr, filename, show_whole_diff=False, show_additions=False, show_deletions=False, enable_mouse=False):
+def main(stdscr, filename, show_whole_diff=False, show_additions=False, show_deletions=False, enable_mouse=True):
     curses.curs_set(0)
     if enable_mouse:
         curses.mousemask(curses.ALL_MOUSE_EVENTS)
@@ -439,7 +439,7 @@ if __name__ == "__main__":
     parser.add_argument("-d", "--diff", action="store_true", help="Highlight newly added and deleted lines")
     parser.add_argument("--diff-additions", action="store_true", help="Highlight newly added lines in green")
     parser.add_argument("--diff-deletions", action="store_true", help="Show deleted lines in red")
-    parser.add_argument("-m", "--mouse", action="store_true", help="Enable mouse support for navigation")
+    parser.add_argument("--no-mouse", action="store_true", help="Disable mouse support")
     parser.add_argument("-v", "--version", action="store_true", help="Show version number")
     parser.add_argument("filename", nargs="?", help="File to view history for")
     
@@ -459,5 +459,5 @@ if __name__ == "__main__":
         print(f"Error: File '{filename}' does not exist")
         sys.exit(1)
         
-    curses.wrapper(main, filename, args.diff, args.diff_additions, args.diff_deletions, args.mouse)
+    curses.wrapper(main, filename, args.diff, args.diff_additions, args.diff_deletions, not args.no_mouse)