diff --git a/README.md b/README.md
index 037d499..ffa4bfb 100644
--- a/README.md
+++ b/README.md
@@ -85,7 +85,7 @@ The size of the sample can be controlled with the argument `-n N`.
 The program outputs the result of a Kolmogorov-Smirnov test and t-tests
 comparing the sample mode, FWHM and median, in this order.
 
-`ex-1/bin.pdf` prints a list of x-y points of the Landau PDF to the `stdout`.
+`ex-1/bin/pdf` prints a list of x-y points of the Landau PDF to the `stdout`.
 The output can be redirected to `ex-1/pdf-plot.py` to generate a plot.
 
 (optional) `ex-1/plots/kde.py` makes the example plot (shown in exercises.pdf,