diff --git a/src/maths/dense/Makefile.am b/src/maths/dense/Makefile.am
index 8e3272d00..580a40366 100644
--- a/src/maths/dense/Makefile.am
+++ b/src/maths/dense/Makefile.am
@@ -3,7 +3,9 @@
 noinst_LTLIBRARIES = libdense.la
 
 libdense_la_SOURCES = \
-		dense.c
+		dense.c \
+		dense.h \
+		denseinlines.h
 
 
 AM_CPPFLAGS = @AM_CPPFLAGS@ -I$(top_srcdir)/src/include -I$(top_srcdir)/src/maths/dense