diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index 5909ac7adb0..bbe53d13b81 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -92,6 +92,7 @@ AC_CONFIG_MAKEFILE(test/Programs/TEST.dsgraph.gnuplot)
 AC_CONFIG_MAKEFILE(test/Programs/TEST.micro.Makefile)
 AC_CONFIG_MAKEFILE(test/Programs/External/Makefile)
 AC_CONFIG_MAKEFILE(test/Programs/External/SPEC/Makefile)
+AC_CONFIG_MAKEFILE(test/Programs/External/SPEC/Makefile.spec)
 AC_CONFIG_MAKEFILE(test/Programs/External/SPEC/CFP2000/Makefile)
 AC_CONFIG_MAKEFILE(test/Programs/External/SPEC/CFP2000/179.art/Makefile)
 AC_CONFIG_MAKEFILE(test/Programs/External/SPEC/CFP2000/183.equake/Makefile)