diff --git a/Makefile.am b/Makefile.am
index 31286d1..2631af1 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -61,6 +61,7 @@ man_MANS = \
 	man/man4/Read.4
 
 pkginclude_HEADERS = \
+        io_lib_config.h \
 	io_lib/Read.h \
 	io_lib/scf_extras.h \
 	io_lib/translate.h \