--- a/google.py
+++ b/google.py
@@ -70,5 +70,5 @@
    s = web.get(uri)
    for chunk in s.split('<img'):
-      if '/images/calc' in chunk:
+      if '/images/icons/onebox/calc' in chunk:
          m = r_googlecalc.search(chunk)
          if m: return text(m.group(1))