diff --git a/lib/cpp/test/Makefile.am b/lib/cpp/test/Makefile.am
index e404b40..9111201 100755
--- a/lib/cpp/test/Makefile.am
+++ b/lib/cpp/test/Makefile.am
@@ -265,7 +265,7 @@
 gen-cpp/SecondService.cpp gen-cpp/ThriftTest_constants.cpp gen-cpp/ThriftTest.cpp gen-cpp/ThriftTest_types.cpp gen-cpp/ThriftTest_types.h: $(top_srcdir)/test/ThriftTest.thrift
 	$(THRIFT) --gen cpp:dense $<
 
-gen-cpp/ChildService.cpp gen-cpp/ParentService.cpp gen-cpp/proc_types.cpp: processor/proc.thrift
+gen-cpp/ChildService.cpp gen-cpp/ChildService.h gen-cpp/ParentService.cpp gen-cpp/ParentService.h gen-cpp/proc_types.cpp gen-cpp/proc_types.h: processor/proc.thrift
 	$(THRIFT) --gen cpp:templates,cob_style $<
 
 AM_CPPFLAGS = $(BOOST_CPPFLAGS) -I$(top_srcdir)/lib/cpp/src