diff --git a/README.md b/README.md
index a989c99..6c28e68 100644
--- a/README.md
+++ b/README.md
@@ -174,7 +174,7 @@ of the standard deviation vs function calls for the plain MC method. The
 program takes the tabular results of `ex-5/bin/main` as input, so run it as:
 
 
-    $ ex-5/bin/main | ex-5/plot.py
+    $ ex-5/bin/main | ex-5/plots/fit.py
 
 
 ### Exercise 6