diff --git a/src/spicelib/devices/Makefile.am b/src/spicelib/devices/Makefile.am
index a1698ff92..3a64da7d2 100644
--- a/src/spicelib/devices/Makefile.am
+++ b/src/spicelib/devices/Makefile.am
@@ -36,7 +36,9 @@ SUBDIRS = \
 
 lib_LIBRARIES = libdev.a
 
-libdev_a_SOURCES = dev.c
+libdev_a_SOURCES = 	\
+		dev.c	\
+		dev.h
 
 INCLUDES = -I$(top_srcdir)/src/include