diff --git a/master/doxygen.c b/master/doxygen.c
index 2446f707..a036af2c 100644
--- a/master/doxygen.c
+++ b/master/doxygen.c
@@ -41,7 +41,7 @@
    <a href="devicedrivers.html">here</a>.
 
    A <a href="libfakeethercat.html">second userspace library</a> can be used for a dry-run mode
-   or simulating EtherCAT slaves.
+   or simulating Process Data.
 
    For information how to build and install, see the INSTALL file in the source
    root.