diff --git a/doc/models/Makefile b/doc/models/Makefile
index 61a73d30b..d97bb7933 100644
--- a/doc/models/Makefile
+++ b/doc/models/Makefile
@@ -82,6 +82,7 @@ SOURCES = \
 	$(SRC)/traffic-control/doc/red.rst \
 	$(SRC)/traffic-control/doc/codel.rst \
 	$(SRC)/traffic-control/doc/fq-codel.rst \
+	$(SRC)/traffic-control/doc/pie.rst \
 	$(SRC)/spectrum/doc/spectrum.rst \
 	$(SRC)/stats/doc/adaptor.rst \
 	$(SRC)/stats/doc/aggregator.rst \
diff --git a/doc/models/source/traffic-control.rst b/doc/models/source/traffic-control.rst
index 31645c881..fe5562513 100644
--- a/doc/models/source/traffic-control.rst
+++ b/doc/models/source/traffic-control.rst
@@ -9,3 +9,4 @@ Traffic Control Layer
    red
    codel
    fq-codel
+   pie