diff --git a/configure.ac b/configure.ac
index de47645..50e6896 100755
--- a/configure.ac
+++ b/configure.ac
@@ -612,6 +612,7 @@
   test/py.twisted/Makefile
   test/rb/Makefile
   tutorial/Makefile
+  tutorial/cpp/Makefile
   tutorial/java/Makefile
   tutorial/js/Makefile
 ])