diff --git a/lib/cpp/Makefile.am b/lib/cpp/Makefile.am
index c015b0d..2499fdb 100644
--- a/lib/cpp/Makefile.am
+++ b/lib/cpp/Makefile.am
@@ -252,6 +252,9 @@
              libthriftnb.vcxproj.filters \
              3rdparty.props
 
+distdir:
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
 EXTRA_DIST = \
              CMakeLists.txt \
              coding_standards.md \
diff --git a/lib/cpp/test/Makefile.am b/lib/cpp/test/Makefile.am
index cd401c0..a744039 100644
--- a/lib/cpp/test/Makefile.am
+++ b/lib/cpp/test/Makefile.am
@@ -424,6 +424,9 @@
 clean-local:
 	$(RM) gen-cpp/*
 
+distdir:
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
 EXTRA_DIST = \
 	concurrency \
 	processor \