diff --git a/src/Makefile.am b/src/Makefile.am
index 84c283d2..d0b87f7f 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -43,6 +43,7 @@ pkginclude_HEADERS = \
 	../headers/modsecurity/modsecurity.h \
 	../headers/modsecurity/rule.h \
 	../headers/modsecurity/rule_message.h \
+	../headers/modsecurity/rules.h \
 	../headers/modsecurity/rules_set.h \
 	../headers/modsecurity/rules_exceptions.h \
 	../headers/modsecurity/rules_properties.h \