diff --git a/src/options.cpp b/src/options.cpp
index 74539e8..97a1bb7 100644
--- a/src/options.cpp
+++ b/src/options.cpp
@@ -104,6 +104,8 @@ po::variables_map parse_options(int argc, char *argv[])
     {
         cout << translate("Usage: epubgrep [OPTION]… PATTERN [FILE]…\n");
         cout << options_visible;
+        cout << translate("\nYou can access the full manual "
+                          "with `man epubgrep`.\n");
     }
     else if (vm.count("version") != 0)
     {