diff --git a/configure.ac b/configure.ac
index 69e3708..d5eb258 100644
--- a/configure.ac
+++ b/configure.ac
@@ -17,8 +17,8 @@ GLIB2_REQUIRED="2.38"
 GLIB2_ENCODED_VERSION="GLIB_VERSION_2_38"
 
 # Keep these two definitions in agreement.
-GTK_REQUIRED="3.10"
-GTK_ENCODED_VERSION="GDK_VERSION_3_10"
+GTK_REQUIRED="3.12"
+GTK_ENCODED_VERSION="GDK_VERSION_3_12"
 
 LIBXML2_REQUIRED="2.6.0"
 LIBVIRT_REQUIRED="0.10.0"
diff --git a/src/virt-viewer-window.c b/src/virt-viewer-window.c
index 867a7b0..f5448c6 100644
--- a/src/virt-viewer-window.c
+++ b/src/virt-viewer-window.c
@@ -693,6 +693,45 @@ virt_viewer_window_get_keycombo_menu(VirtViewerWindow *self)
     return menu;
 }
 
+static void
+action_zoom_in(G_GNUC_UNUSED GSimpleAction *action,
+               G_GNUC_UNUSED GVariant *state,
+               gpointer user_data)
+{
+    virt_viewer_window_menu_view_zoom_in(NULL, VIRT_VIEWER_WINDOW(user_data));
+}
+
+static void
+action_zoom_out(G_GNUC_UNUSED GSimpleAction *action,
+                G_GNUC_UNUSED GVariant *state,
+                gpointer user_data)
+{
+    virt_viewer_window_menu_view_zoom_out(NULL, VIRT_VIEWER_WINDOW(user_data));
+}
+
+static void
+action_zoom_reset(G_GNUC_UNUSED GSimpleAction *action,
+                  G_GNUC_UNUSED GVariant *state,
+                  gpointer user_data)
+{
+    virt_viewer_window_menu_view_zoom_reset(NULL, VIRT_VIEWER_WINDOW(user_data));
+}
+
+/* Keep keypad_action_entries and keypad_action_accels in sync */
+static const GActionEntry keypad_action_entries[] = {
+    { .name = "zoom-in", .activate = action_zoom_in },
+    { .name = "zoom-out", .activate = action_zoom_out },
+    { .name = "zoom-reset", .activate = action_zoom_reset },
+};
+
+static const gchar *const keypad_action_accels[][2] = {
+    /* numpad keys are not handled automatically by gtk, see bgo#699823 */
+    {"<control>KP_Add", NULL},
+    {"<control>KP_Subtract", NULL},
+    {"<control>KP_0", NULL},
+};
+G_STATIC_ASSERT(G_N_ELEMENTS(keypad_action_entries) == G_N_ELEMENTS(keypad_action_accels));
+
 void
 virt_viewer_window_disable_modifiers(VirtViewerWindow *self)
 {
@@ -700,6 +739,7 @@ virt_viewer_window_disable_modifiers(VirtViewerWindow *self)
     VirtViewerWindowPrivate *priv = self->priv;
     GValue empty;
     GSList *accels;
+    guint i;
 
     if (!priv->accel_enabled)
         return;
@@ -726,6 +766,10 @@ virt_viewer_window_disable_modifiers(VirtViewerWindow *self)
                  "gtk-enable-mnemonics", FALSE,
                  NULL);
 
+    for (i = 0; i < G_N_ELEMENTS(keypad_action_entries); i++) {
+        g_action_map_remove_action(G_ACTION_MAP(priv->window), keypad_action_entries[i].name);
+    }
+
     priv->accel_enabled = FALSE;
 }
 
@@ -735,6 +779,7 @@ virt_viewer_window_enable_modifiers(VirtViewerWindow *self)
     GtkSettings *settings = gtk_settings_get_default();
     VirtViewerWindowPrivate *priv = self->priv;
     GSList *accels;
+    guint i;
 
     if (priv->accel_enabled)
         return;
@@ -755,6 +800,17 @@ virt_viewer_window_enable_modifiers(VirtViewerWindow *self)
                  "gtk-enable-mnemonics", priv->enable_mnemonics_save,
                  NULL);
 
+    g_action_map_add_action_entries(G_ACTION_MAP(priv->window),
+                                    keypad_action_entries, G_N_ELEMENTS(keypad_action_entries),
+                                    self);
+    for (i = 0; i < G_N_ELEMENTS(keypad_action_entries); i++) {
+        gchar *detailed_name = g_strdup_printf("win.%s", keypad_action_entries[i].name);
+        gtk_application_set_accels_for_action(GTK_APPLICATION(priv->app),
+                                              detailed_name,
+                                              keypad_action_accels[i]);
+        g_free(detailed_name);
+    }
+
     priv->accel_enabled = TRUE;
 }