diff -up nco-3.9.5/src/nco/Makefile.am.install_C_headers nco-3.9.5/src/nco/Makefile.am
--- nco-3.9.5/src/nco/Makefile.am.install_C_headers	2008-07-10 09:03:48.000000000 +0200
+++ nco-3.9.5/src/nco/Makefile.am	2008-07-10 09:03:53.000000000 +0200
@@ -132,7 +132,7 @@ libnco_la_LDFLAGS = -release @VERSION@
 # To my knowledge, thought, only NCO programs use libnco
 # For this reason Debian packages should not install NCO headers (yet)
 # Remove following line until learn how to prevent debian from installing headers
-#include_HEADERS = $(HEADER_SRC)
+include_HEADERS = $(HEADER_SRC)
 
 libnco_la_SOURCES = \
 ${HEADER_SRC} \