diff --git a/configure.ac b/configure.ac
index fd342718..92b11d1d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -121,5 +121,6 @@ AC_CONFIG_FILES([
   tests/Makefile
   tests/phreeqc.dat
   tests/ex2
+  database/Makefile
 ])
 AC_OUTPUT