diff --git a/test/Makefile.am b/test/Makefile.am
index c614975..5903ee0 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -26,14 +26,14 @@
 				$(PHOSPHOR_LOGGING_LIBS) \
 				$(PHOSPHOR_DBUS_INTERFACES_LIBS)
 
-test_LDADD = $(top_builddir)/ethernet_interface.cpp \
-			$(top_builddir)/network_manager.cpp \
-			$(top_builddir)/network_config.cpp \
-			$(top_builddir)/ipaddress.cpp \
-			$(top_builddir)/routing_table.cpp \
-			$(top_builddir)/util.cpp \
-			$(top_builddir)/system_configuration.cpp \
-			$(top_builddir)/dhcp_configuration.cpp \
-			$(top_builddir)/config_parser.cpp \
+test_LDADD = $(top_builddir)/ethernet_interface.o \
+			$(top_builddir)/network_manager.o \
+			$(top_builddir)/network_config.o \
+			$(top_builddir)/ipaddress.o \
+			$(top_builddir)/routing_table.o \
+			$(top_builddir)/util.o \
+			$(top_builddir)/system_configuration.o \
+			$(top_builddir)/dhcp_configuration.o \
+			$(top_builddir)/config_parser.o \
 			$(top_builddir)/xyz/openbmc_project/Network/VLAN/Create/phosphor_network_manager-server.o \
 			$(top_builddir)/xyz/openbmc_project/Network/IP/Create/phosphor_network_manager-server.o