diff --git a/tools/Makefile.am b/tools/Makefile.am
index 0c9f7e53b..9e0c94550 100644
--- a/tools/Makefile.am
+++ b/tools/Makefile.am
@@ -15,16 +15,25 @@ if BUILD_TOOLS
 
 lib_LTLIBRARIES=libxml2lpc.la
 
-libxml2lpc_la_SOURCES=xml2lpc.c xml2lpc.h
+libxml2lpc_la_SOURCES=\
+	xml2lpc.c \
+	xml2lpc.h
+
 libxml2lpc_la_CFLAGS=$(COMMON_CFLAGS)
 libxml2lpc_la_LIBADD=\
-	$(LIBXML2_LIBS)
+	$(LIBXML2_LIBS) \
+	$(top_builddir)/coreapi/liblinphone.la
+
+libxml2lpc_la_LDFLAGS=-no-undefined
 
 bin_PROGRAMS=xml2lpc_test
 
-xml2lpc_test_SOURCES=xml2lpc_test.c
+xml2lpc_test_SOURCES=\
+	xml2lpc_test.c
+
 xml2lpc_test_CFLAGS=$(COMMON_CFLAGS)
-xml2lpc_test_LDADD=$(top_builddir)/coreapi/liblinphone.la libxml2lpc.la
+xml2lpc_test_LDADD=\
+	libxml2lpc.la
 
 endif