diff --git a/qpid-proton.spec b/qpid-proton.spec
index e59c305..d434bae 100644
--- a/qpid-proton.spec
+++ b/qpid-proton.spec
@@ -119,7 +119,7 @@ Obsoletes: qpid-proton-devel
 %files c-devel
 %defattr(-,root,root,-)
 %{_includedir}/proton
-%exclude %{_includedir}/proton/*.hpp
+%exclude %{_includedir}/proton/**/*.hpp
 %{_libdir}/libqpid-proton.so
 %{_libdir}/libqpid-proton-core.so
 %{_libdir}/pkgconfig/libqpid-proton.pc