diff --git a/gui/sourcewindow.xml b/gui/sourcewindow.xml
index e92bee6..fa2f218 100644
--- a/gui/sourcewindow.xml
+++ b/gui/sourcewindow.xml
@@ -40,7 +40,7 @@
                 <property name="tooltip_text" translatable="yes">Continue execution</property>
                 <property name="label" translatable="yes">Continue</property>
                 <property name="use_underline">True</property>
-                <property name="stock_id">gtk-media-forward</property>
+                <property name="icon_name">media-playback-start</property>
                 <signal name="clicked" handler="do_continue" swapped="no"/>
                 <accelerator key="c" signal="clicked"/>
               </object>
@@ -88,7 +88,7 @@
                 <property name="tooltip_text" translatable="yes">Interrupt the program</property>
                 <property name="label" translatable="yes">Stop</property>
                 <property name="use_underline">True</property>
-                <property name="stock_id">gtk-stop</property>
+                <property name="icon_name">media-playback-pause</property>
                 <signal name="clicked" handler="do_stop" swapped="no"/>
                 <accelerator key="c" signal="clicked" modifiers="GDK_CONTROL_MASK"/>
               </object>
@@ -130,7 +130,7 @@
                 <property name="tooltip_text" translatable="yes">Up one frame</property>
                 <property name="label" translatable="yes">Up</property>
                 <property name="use_underline">True</property>
-                <property name="stock_id">gtk-go-up</property>
+                <property name="icon_name">go-down</property>
                 <accelerator key="u" signal="clicked"/>
               </object>
               <packing>
@@ -145,7 +145,7 @@
                 <property name="tooltip_text" translatable="yes">Down one frame</property>
                 <property name="label" translatable="yes">Down</property>
                 <property name="use_underline">True</property>
-                <property name="stock_id">gtk-go-down</property>
+                <property name="icon_name">go-up</property>
                 <accelerator key="d" signal="clicked"/>
               </object>
               <packing>