diff --git a/extensions/openpower-pels/openpower-pels.mk b/extensions/openpower-pels/openpower-pels.mk
index e510b42..d18947e 100644
--- a/extensions/openpower-pels/openpower-pels.mk
+++ b/extensions/openpower-pels/openpower-pels.mk
@@ -59,6 +59,8 @@
 	$(SDEVENTPLUS_CFLAGS) \
 	$(PHOSPHOR_DBUS_INTERFACES_CFLAGS)
 
+libpel_la_CXXFLAGS = $(libpel_cxx_flags)
+
 registrydir = $(datadir)/phosphor-logging/pels/
 registry_DATA = extensions/openpower-pels/registry/message_registry.json