diff --git a/common/draw.c b/common/draw.c
index 74021d2..df35f64 100644
--- a/common/draw.c
+++ b/common/draw.c
@@ -1111,9 +1111,9 @@ xcolor_new(xcb_connection_t *conn, int phys_screen, const char *colstr, xcolor_t
         blue = RGB_COLOR_8_TO_16(colnum);
 
         hexa_color = xcb_alloc_color_reply(conn,
-                                           xcb_alloc_color(conn,
-                                                           s->default_colormap,
-                                                           red, green, blue),
+                                           xcb_alloc_color_unchecked(conn,
+                                                                     s->default_colormap,
+                                                                     red, green, blue),
                                            NULL);
 
         if(hexa_color)
@@ -1130,10 +1130,10 @@ xcolor_new(xcb_connection_t *conn, int phys_screen, const char *colstr, xcolor_t
     else
     {
         named_color = xcb_alloc_named_color_reply(conn,
-                                                  xcb_alloc_named_color(conn,
-                                                                        s->default_colormap,
-                                                                        len,
-                                                                        colstr),
+                                                  xcb_alloc_named_color_unchecked(conn,
+                                                                                  s->default_colormap,
+                                                                                  len,
+                                                                                  colstr),
                                                   NULL);
 
         if(named_color)
diff --git a/common/xembed.c b/common/xembed.c
index 74e9de0..303434a 100644
--- a/common/xembed.c
+++ b/common/xembed.c
@@ -95,7 +95,9 @@ xembed_info_get(xcb_connection_t *connection, xcb_window_t win, xembed_info_t *i
     atom_q = xutil_intern_atom(connection, NULL, "_XEMBED_INFO");
     atom = xutil_intern_atom_reply(connection, NULL, atom_q);
 
-    prop_c = xcb_get_property(connection, false, win, atom, XCB_GET_PROPERTY_TYPE_ANY, 0L, 2);
+    prop_c = xcb_get_property_unchecked(connection, false, win, atom,
+                                        XCB_GET_PROPERTY_TYPE_ANY, 0L, 2);
+
     prop_r = xcb_get_property_reply(connection, prop_c, NULL);
 
     if(!prop_r || !prop_r->value_len)
diff --git a/common/xutil.c b/common/xutil.c
index ef16852..8d1d336 100644
--- a/common/xutil.c
+++ b/common/xutil.c
@@ -137,9 +137,9 @@ xutil_get_transient_for_hint(xcb_connection_t *c, xcb_window_t win,
     /* Use checked because the error handler should not take care of
      * this error as we only return a boolean */
     t_hint_r = xcb_get_property_reply(c,
-                                      xcb_get_property(c, false, win,
-                                                       WM_TRANSIENT_FOR,
-                                                       WINDOW, 0, 1),
+                                      xcb_get_property_unchecked(c, false, win,
+                                                                 WM_TRANSIENT_FOR,
+                                                                 WINDOW, 0, 1),
                                       NULL);
 
     if(!t_hint_r || t_hint_r->type != WINDOW || t_hint_r->format != 32 ||
diff --git a/event.c b/event.c
index d1e8bb1..f9d6504 100644
--- a/event.c
+++ b/event.c
@@ -440,7 +440,7 @@ event_handle_maprequest(void *data __attribute__ ((unused)),
     xcb_get_geometry_reply_t *geom_r;
     xcb_screen_iterator_t iter;
 
-    wa_c = xcb_get_window_attributes(connection, ev->window);
+    wa_c = xcb_get_window_attributes_unchecked(connection, ev->window);
 
     if(!(wa_r = xcb_get_window_attributes_reply(connection, wa_c, NULL)))
         return -1;
@@ -455,11 +455,11 @@ event_handle_maprequest(void *data __attribute__ ((unused)),
     }
     else if(!(c = client_getbywin(ev->window)))
     {
-        geom_c = xcb_get_geometry(connection, ev->window);
+        geom_c = xcb_get_geometry_unchecked(connection, ev->window);
 
         if(globalconf.screens_info->xinerama_is_active)
-            qp_c = xcb_query_pointer(connection, xutil_screen_get(globalconf.connection,
-                                                                    screen_nbr)->root);
+            qp_c = xcb_query_pointer_unchecked(connection, xutil_screen_get(globalconf.connection,
+                                                                            screen_nbr)->root);
 
         if(!(geom_r = xcb_get_geometry_reply(connection, geom_c, NULL)))
         {
diff --git a/placement.c b/placement.c
index b702fdb..2800ba2 100644
--- a/placement.c
+++ b/placement.c
@@ -134,8 +134,9 @@ placement_under_mouse(client_t *c)
     xcb_query_pointer_reply_t *qp_r;
     area_t finalgeometry = c->f_geometry;
 
-    qp_c = xcb_query_pointer(globalconf.connection,
-                             xutil_screen_get(globalconf.connection, c->phys_screen)->root);
+    qp_c = xcb_query_pointer_unchecked(globalconf.connection,
+                                       xutil_screen_get(globalconf.connection,
+                                                        c->phys_screen)->root);
     if((qp_r = xcb_query_pointer_reply(globalconf.connection, qp_c, NULL)))
     {
         finalgeometry.x = qp_r->root_x - c->f_geometry.width / 2;
diff --git a/systray.c b/systray.c
index dae9250..b0eda60 100644
--- a/systray.c
+++ b/systray.c
@@ -138,7 +138,7 @@ systray_process_client_message(xcb_client_message_event_t *ev)
     switch(ev->data.data32[1])
     {
       case SYSTEM_TRAY_REQUEST_DOCK:
-        geom_c = xcb_get_geometry(globalconf.connection, ev->window);
+        geom_c = xcb_get_geometry_unchecked(globalconf.connection, ev->window);
 
         if(!(geom_r = xcb_get_geometry_reply(globalconf.connection, geom_c, NULL)))
             return -1;