diff --git a/lib/cpp/Makefile.am b/lib/cpp/Makefile.am
index 3d7beab..dcbcf2c 100644
--- a/lib/cpp/Makefile.am
+++ b/lib/cpp/Makefile.am
@@ -143,6 +143,7 @@
                          src/thrift/TProcessor.h \
                          src/thrift/TApplicationException.h \
                          src/thrift/TLogging.h \
+                         src/thrift/TPrintTo.h \
                          src/thrift/TToString.h \
                          src/thrift/TBase.h \
                          src/thrift/TConfiguration.h \