diff --git a/rules/rules.mk b/rules/rules.mk
index 4bdcc6ee..f91cbf6e 100644
--- a/rules/rules.mk
+++ b/rules/rules.mk
@@ -177,7 +177,7 @@ export PATH := $(PUBLISHERDIRABS)/scripts:$(PATH)
 endif
 SILEPATH += $(CASILEDIR)
 
-DIVISIONS ?= part chapter section
+DIVISIONS ?= chapter section
 
 # Extra arguments to pass to Pandoc
 PANDOCARGS ?=