diff --git a/cxxmph/Makefile.am b/cxxmph/Makefile.am
index 6149a53..a7fafa0 100644
--- a/cxxmph/Makefile.am
+++ b/cxxmph/Makefile.am
@@ -2,10 +2,10 @@ check_PROGRAMS = cmph_hash_map_test mphtable_test trigraph_test
 noinst_PROGRAMS = bm_numbers bm_urls
 bin_PROGRAMS = cxxmph
 lib_LTLIBRARIES = libcxxmph.la
-include_HEADERS = cmph_hash_map.h mphtable.h MurmurHash2.h trigraph.h cxxmph_hash.h stringpiece.h
-
 libcxxmph_la_SOURCES = MurmurHash2.h trigragh.h trigraph.cc mphtable.h mphtable.cc cxxmph_hash.h stringpiece.h benchmark.h benchmark.cc
 libcxxmph_la_LDFLAGS = -version-info 0:0:0
+cxxmph_includedir = $(includedir)/cxxmph/
+cxxmph_include_HEADERS = cmph_hash_map.h mphtable.h MurmurHash2.h trigraph.h cxxmph_hash.h stringpiece.h
 
 cmph_hash_map_test_LDADD   = libcxxmph.la
 cmph_hash_map_test_SOURCES = cmph_hash_map_test.cc