diff --git a/terminal/terminal-screen.c b/terminal/terminal-screen.c
index 8831573..aa5ea9e 100644
--- a/terminal/terminal-screen.c
+++ b/terminal/terminal-screen.c
@@ -2254,3 +2254,22 @@ terminal_screen_search_find_previous (TerminalScreen *screen)
   terminal_return_if_fail (TERMINAL_IS_SCREEN (screen));
   vte_terminal_search_find_previous (VTE_TERMINAL (screen->terminal));
 }
+
+
+void terminal_screen_change_font_size (TerminalScreen *screen,
+                                       gint            delta)
+{
+  const PangoFontDescription *origfont;
+  PangoFontDescription *newfont;
+  gint size;
+
+  origfont = vte_terminal_get_font (VTE_TERMINAL (screen->terminal));
+  newfont = pango_font_description_copy (origfont);
+
+  size = pango_font_description_get_size (newfont) / PANGO_SCALE;
+  size += delta;
+
+  pango_font_description_set_size (newfont, size * PANGO_SCALE);
+  vte_terminal_set_font (VTE_TERMINAL (screen->terminal), newfont);
+  return;
+}
diff --git a/terminal/terminal-screen.h b/terminal/terminal-screen.h
index 9da1506..307db5c 100644
--- a/terminal/terminal-screen.h
+++ b/terminal/terminal-screen.h
@@ -110,6 +110,8 @@ void         terminal_screen_search_find_next             (TerminalScreen *scree
 
 void         terminal_screen_search_find_previous         (TerminalScreen *screen);
 
+void         terminal_screen_change_font_size             (TerminalScreen *screen,
+                                                           gint            delta);
 
 G_END_DECLS
 
diff --git a/terminal/terminal-window-ui.xml b/terminal/terminal-window-ui.xml
index 16dda85..79587c2 100644
--- a/terminal/terminal-window-ui.xml
+++ b/terminal/terminal-window-ui.xml
@@ -34,6 +34,8 @@
     </menu>
     <menu action="terminal-menu">
       <menuitem action="set-title"/>
+      <menuitem action="increase-font"/>
+      <menuitem action="decrease-font"/>
       <separator/>
       <menuitem action="search"/>
       <menuitem action="search-next"/>
diff --git a/terminal/terminal-window.c b/terminal/terminal-window.c
index 8dd564d..51d41a4 100644
--- a/terminal/terminal-window.c
+++ b/terminal/terminal-window.c
@@ -182,6 +182,10 @@ static void            terminal_window_action_contents               (GtkAction
                                                                       TerminalWindow         *window);
 static void            terminal_window_action_about                  (GtkAction              *action,
                                                                       TerminalWindow         *window);
+static void            terminal_window_action_increase_font          (GtkAction              *action,
+                                                                      TerminalWindow         *window);
+static void            terminal_window_action_decrease_font          (GtkAction              *action,
+                                                                      TerminalWindow         *window);
 
 
 
@@ -207,6 +211,8 @@ static const GtkActionEntry action_entries[] =
     { "preferences", GTK_STOCK_PREFERENCES, N_ ("Pr_eferences..."), NULL, N_ ("Open the preferences dialog"), G_CALLBACK (terminal_window_action_prefs), },
   { "view-menu", NULL, N_ ("_View"), NULL, NULL, NULL, },
   { "terminal-menu", NULL, N_ ("_Terminal"), NULL, NULL, NULL, },
+    { "increase-font", NULL, N_ ("Increase font size"), "<control><shift>Up", NULL, G_CALLBACK (terminal_window_action_increase_font), },
+    { "decrease-font", NULL, N_ ("Decrease font size"), "<control><shift>Down", NULL, G_CALLBACK (terminal_window_action_decrease_font), },
     { "set-title", NULL, N_ ("_Set Title..."), NULL, NULL, G_CALLBACK (terminal_window_action_set_title), },
     { "search", GTK_STOCK_FIND, N_ ("_Find..."), "<control><shift>f", NULL, G_CALLBACK (terminal_window_action_search), },
     { "search-next", NULL, N_ ("Find Ne_xt"), NULL, NULL, G_CALLBACK (terminal_window_action_search_next), },
@@ -1771,6 +1777,23 @@ terminal_window_action_about (GtkAction      *action,
   terminal_util_show_about_dialog (GTK_WINDOW (window));
 }
 
+static void
+terminal_window_action_increase_font (GtkAction      *action,
+                                      TerminalWindow *window)
+{
+  terminal_window_size_push(window);
+  terminal_screen_change_font_size(window->active, 1);
+  terminal_window_size_pop(window);
+}
+
+static void
+terminal_window_action_decrease_font (GtkAction      *action,
+                                      TerminalWindow *window)
+{
+  terminal_window_size_push(window);
+  terminal_screen_change_font_size(window->active, -1);
+  terminal_window_size_pop(window);
+}
 
 
 /**