diff --git a/include/components/bar.hpp b/include/components/bar.hpp
index 8b9fdfcb..9ac227ca 100644
--- a/include/components/bar.hpp
+++ b/include/components/bar.hpp
@@ -308,7 +308,7 @@ class bar : public xpp::event::sink<evt::button_press> {
         XCB_AUX_ADD_PARAM(&mask, &params, graphics_exposures, 0);
         xutils::pack_values(mask, &params, value_list);
         m_gcontexts.emplace(gc(i), gcontext{m_connection, m_connection.generate_id()});
-        m_connection.create_gc_checked(m_gcontexts.at(gc(i)), m_pixmap, mask, &value_list);
+        m_connection.create_gc_checked(m_gcontexts.at(gc(i)), m_pixmap, mask, value_list);
       }
     }
 
@@ -689,7 +689,7 @@ class bar : public xpp::event::sink<evt::button_press> {
         "bar: color_change(%i, %s -> %s)", static_cast<int>(gc_), color_.hex(), color_.rgb());
 
     const uint32_t value_list[32]{color_.value()};
-    m_connection.change_gc(m_gcontexts.at(gc_), XCB_GC_FOREGROUND, &value_list);
+    m_connection.change_gc(m_gcontexts.at(gc_), XCB_GC_FOREGROUND, value_list);
 
     if (gc_ == gc::FG)
       m_fontmanager->allocate_color(color_);
diff --git a/include/components/x11/fontmanager.hpp b/include/components/x11/fontmanager.hpp
index 79d67238..17e586e6 100644
--- a/include/components/x11/fontmanager.hpp
+++ b/include/components/x11/fontmanager.hpp
@@ -183,8 +183,8 @@ class fontmanager {
   }  // }}}
 
   void set_gcontext_font(gcontext& gc, xcb_font_t font) {  // {{{
-    const uint32_t values[]{font};
-    m_connection.change_gc(gc, XCB_GC_FONT, &values);
+    const uint32_t values[1]{font};
+    m_connection.change_gc(gc, XCB_GC_FONT, values);
   }  // }}}
 
  protected:
diff --git a/include/components/x11/window.hpp b/include/components/x11/window.hpp
index ed2f9fae..99ac7ff8 100644
--- a/include/components/x11/window.hpp
+++ b/include/components/x11/window.hpp
@@ -26,7 +26,7 @@ class window : public xpp::window<connection_t&> {
     uint32_t value_list[16];
     xutils::pack_values(mask, params, value_list);
     connection().create_window_checked(depth, operator*(), screen->root, x, y, w, h, 0,
-        XCB_WINDOW_CLASS_INPUT_OUTPUT, visual->visual_id, mask, &value_list);
+        XCB_WINDOW_CLASS_INPUT_OUTPUT, visual->visual_id, mask, value_list);
     return *this;
   }