diff --git a/content/pyqt.rst b/content/pyqt.rst
index 253cb09..d980f1a 100644
--- a/content/pyqt.rst
+++ b/content/pyqt.rst
@@ -1,4 +1,4 @@
-.. _freq-domain-chapter:
+.. _pyqt-chapter:
 
 ##########################
 Real-Time GUIs with PyQt