diff --git a/Makefile.am b/Makefile.am
index 837f9bd0..58d93dd1 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -57,7 +57,8 @@ ell_headers = ell/util.h \
 			ell/dhcp.h \
 			ell/cert.h \
 			ell/ecc.h \
-			ell/ecdh.h
+			ell/ecdh.h \
+			ell/time.h
 
 ell_sources = ell/private.h \
 			ell/missing.h \
@@ -122,7 +123,8 @@ ell_sources = ell/private.h \
 			ell/ecc-external.c \
 			ell/ecc-private.h \
 			ell/ecc.c \
-			ell/ecdh.c
+			ell/ecdh.c \
+			ell/time.c
 
 ell_libell_internal_la_SOURCES = $(ell_headers) $(ell_sources)
 endif