diff --git a/include/CLI/App.hpp b/include/CLI/App.hpp
index ffbe986fc..0e23a06c5 100644
--- a/include/CLI/App.hpp
+++ b/include/CLI/App.hpp
@@ -733,6 +733,9 @@ class App {
         auto *ptr = option_group.get();
         // move to App_p for overload resolution on older gcc versions
         App_p app_ptr = std::dynamic_pointer_cast<App>(option_group);
+        // don't inherit the footer in option groups and clear the help flag by default
+        app_ptr->footer_ = "";
+        app_ptr->set_help_flag();
         add_subcommand(std::move(app_ptr));
         return ptr;
     }
diff --git a/tests/HelpTest.cpp b/tests/HelpTest.cpp
index 1ef795021..dcdebce6e 100644
--- a/tests/HelpTest.cpp
+++ b/tests/HelpTest.cpp
@@ -85,6 +85,25 @@ TEST_CASE("THelp: FooterCallbackBoth", "[help]") {
     CHECK_THAT(help, Contains("foot!!!!"));
 }
 
+/// @brief from github issue #1156
+TEST_CASE("THelp: FooterOptionGroup", "[help]") {
+    CLI::App app{"My prog"};
+
+    app.footer("Report bugs to bugs@example.com");
+
+    app.add_option_group("group-a", "");
+
+    app.add_option_group("group-b", "");
+
+    std::string help = app.help();
+
+    auto footer_loc = help.find("bugs@example.com");
+    auto footer_loc2 = help.find("bugs@example.com", footer_loc + 10);
+    CHECK(footer_loc != std::string::npos);
+    // should only see the footer once
+    CHECK(footer_loc2 == std::string::npos);
+}
+
 TEST_CASE("THelp: OptionalPositional", "[help]") {
     CLI::App app{"My prog", "program"};