diff --git a/gtm b/gtm
index 36cd9e6..75ec8f1 100755
--- a/gtm
+++ b/gtm
@@ -220,15 +220,24 @@ def main(stdscr, filename):
 
         stdscr.refresh()
 
+def show_help():
+    """Display help information"""
+    print("Usage: gtm filename")
+    print("       gtm -v, --version (show version)")
+    print("       gtm -h, --help (show this help)")
+    print("\nA Git Time Machine for viewing file history.")
+
 if __name__ == "__main__":
     if len(sys.argv) == 2:
         if sys.argv[1] == "-v" or sys.argv[1] == "--version":
             print(f"gtm version {VERSION}")
             sys.exit(0)
+        elif sys.argv[1] == "-h" or sys.argv[1] == "--help":
+            show_help()
+            sys.exit(0)
         filename = sys.argv[1]
         curses.wrapper(main, filename)
     else:
-        print("Usage: gtm filename")
-        print("       gtm -v, gtm --version (show version)")
+        show_help()
         sys.exit(1)