diff --git a/test/cpp/Makefile.am b/test/cpp/Makefile.am
index 9e8b676..595f7a4 100644
--- a/test/cpp/Makefile.am
+++ b/test/cpp/Makefile.am
@@ -116,6 +116,9 @@
 style-local:
 	$(CPPSTYLE_CMD)
 
+distdir:
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
 EXTRA_DIST = \
 	src/TestClient.cpp \
 	src/TestServer.cpp \