X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?p=lambda.git;a=blobdiff_plain;f=topics%2Fweek4_fixed_point_combinators.mdwn;h=ed22cfff6225d1841de515a7e2821532aa29be39;hp=1ed99d2772714a37401cb03168bc651241b858c0;hb=6694165ac4d6edab602b3ad3651d0a5931b36a0e;hpb=2dd584050f92ab313c395dc7bb915754d61605b4

diff --git a/topics/week4_fixed_point_combinators.mdwn b/topics/week4_fixed_point_combinators.mdwn
index 1ed99d27..ed22cfff 100644
--- a/topics/week4_fixed_point_combinators.mdwn
+++ b/topics/week4_fixed_point_combinators.mdwn
@@ -534,7 +534,7 @@ to *the tail* of the list we were evaluating its application to at the previous
 
 ## Fixed-point Combinators Are a Bit Intoxicating ##
 
-[[tatto|/images/y-combinator-fixed.jpg]]
+[[tatto|/images/y-combinator-fixed.png]]
 
 There's a tendency for people to say "Y-combinator" to refer to fixed-point combinators generally. We'll probably fall into that usage ourselves. Speaking correctly, though, the Y-combinator is only one of many fixed-point combinators.