diff --git a/lib/d/test/Makefile.am b/lib/d/test/Makefile.am
index 44364f9..28f3f3e 100644
--- a/lib/d/test/Makefile.am
+++ b/lib/d/test/Makefile.am
@@ -38,6 +38,8 @@
 $(thrift_test_gen): $(top_srcdir)/test/v0.16/ThriftTest.thrift
 	$(THRIFT) --gen d $<
 
+distdir:
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
 
 # The actual test targets.
 # There just must be some way to reassign a variable without warnings in