diff --git a/Makefile.am b/Makefile.am
index 24941fd4..099e3a2c 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -237,6 +237,7 @@ UTIL_FILES   =			\
     term.hpp			\
     time.cpp			\
     time.hpp			\
+    time.ipp			\
     tuple.cpp			\
     tuple.hpp			\
     types/bits.hpp		\