diff --git a/src/client/conversation-viewer/conversation-viewer.vala b/src/client/conversation-viewer/conversation-viewer.vala
index 4206857..eb85465 100644
--- a/src/client/conversation-viewer/conversation-viewer.vala
+++ b/src/client/conversation-viewer/conversation-viewer.vala
@@ -1493,8 +1493,11 @@ public class ConversationViewer : Gtk.Box {
                         continue;
                     
                     string src = element.get_attribute("src");
-                    if (!web_view.is_always_loaded(src))
+                    if (!web_view.is_always_loaded(src)) {
+                        // Workaround a WebKitGTK+ 2.4.10 crash. See Bug 763933
+                        element.remove_attribute("src");
                         element.set_attribute("src", web_view.allow_prefix + src);
+                    }
                 }
             }
             
