diff --git a/README.asciidoc b/README.asciidoc
index abcfdfcb..f45d4c25 100644
--- a/README.asciidoc
+++ b/README.asciidoc
@@ -1383,6 +1383,10 @@ existing hooks are:
        the filtering text is the client name.
  * `FocusOut`: On supported clients, triggered when the client gets unfocused.
        the filtering text is the client name.
+ * `InsertCompletionShow`: Triggered when the insert completion menu gets
+       displayed.
+ * `InsertCompletionHide`: Triggered when the insert completion menu gets
+       hidden.
 
 When not specified, the filtering text is an empty string.
 
diff --git a/doc/manpages/hooks.asciidoc b/doc/manpages/hooks.asciidoc
index 0707d2d2..96dbc9f1 100644
--- a/doc/manpages/hooks.asciidoc
+++ b/doc/manpages/hooks.asciidoc
@@ -143,4 +143,10 @@ Default hooks
 	on supported clients, triggered when the client gets unfocused. the
 	filtering text is the client name
 
+*InsertCompletionShow*::
+	Triggered when the insert completion menu gets displayed.
+
+*InsertCompletionHide*::
+	Triggered when the insert completion menu gets hidden.
+
 When not specified, the filtering text is an empty string.
diff --git a/src/insert_completer.cc b/src/insert_completer.cc
index 23731337..1cad959d 100644
--- a/src/insert_completer.cc
+++ b/src/insert_completer.cc
@@ -346,7 +346,7 @@ InsertCompletion complete_line(const SelectionList& sels, const OptionManager& o
 
 }
 
-InsertCompleter::InsertCompleter(const Context& context)
+InsertCompleter::InsertCompleter(Context& context)
     : m_context(context), m_options(context.options())
 {
     m_options.register_watcher(*this);
@@ -382,7 +382,7 @@ void InsertCompleter::select(int offset, Vector<Key>& keystrokes)
         {
             buffer.replace((pos - prefix_len).coord(),
                            (pos + suffix_len).coord(), candidate.completion);
-            const_cast<SelectionList&>(selections).update();
+            selections.update();
         }
     }
     m_completions.end = cursor_pos;
@@ -423,6 +423,7 @@ void InsertCompleter::reset()
     {
         m_context.client().menu_hide();
         m_context.client().info_hide();
+        m_context.hooks().run_hook("InsertCompletionHide", "", m_context);
     }
 }
 
@@ -468,6 +469,7 @@ void InsertCompleter::menu_show()
     m_context.client().menu_show(std::move(menu_entries), m_completions.begin,
                                  MenuStyle::Inline);
     m_context.client().menu_select(m_current_candidate);
+    m_context.hooks().run_hook("InsertCompletionShow", "", m_context);
 }
 
 void InsertCompleter::on_option_changed(const Option& opt)
diff --git a/src/insert_completer.hh b/src/insert_completer.hh
index 8868337b..d29af8bd 100644
--- a/src/insert_completer.hh
+++ b/src/insert_completer.hh
@@ -75,7 +75,7 @@ struct InsertCompletion
 class InsertCompleter : public OptionManagerWatcher
 {
 public:
-    InsertCompleter(const Context& context);
+    InsertCompleter(Context& context);
     InsertCompleter(const InsertCompleter&) = delete;
     InsertCompleter& operator=(const InsertCompleter&) = delete;
     ~InsertCompleter();
@@ -97,7 +97,7 @@ private:
 
     void menu_show();
 
-    const Context&   m_context;
+    Context&         m_context;
     OptionManager&   m_options;
     InsertCompletion m_completions;
     int              m_current_candidate = -1;