diff --git a/examples/example09/README b/examples/example09/README
index 219078d02..f99a5fa09 100644
--- a/examples/example09/README
+++ b/examples/example09/README
@@ -16,7 +16,7 @@ of a molecule (SiH4). phcg.x can calculate only phonon modes at q=0, only if
    produced by pw.x with Gamma-specific algorithms.
 
 2) make a phonon calculation for the Gamma point.
-   (input=sih4.nm.in, output=sih4.nm.in)
+   (input=sih4.nm.in, output=sih4.nm.out)
    Note that the calculation is not intended to be a good one,
    but just a test one! Rotation modes have negative frequencies.
    This is a consequence of the supercell approach. Translational
@@ -26,4 +26,4 @@ of a molecule (SiH4). phcg.x can calculate only phonon modes at q=0, only if
 
 3) calculate the IR cross section (input=sih4.dyn.in, output=sih4.dyn.out).
    By applying the appropriate ASR for molecules (option asr='zero-dim')
-   the rotational modes are forced to have zero frequency as well.
\ No newline at end of file
+   the rotational modes are forced to have zero frequency as well.