diff --git a/npa/src/Makefile.am b/npa/src/Makefile.am
index e91d357..a9e753e 100644
--- a/npa/src/Makefile.am
+++ b/npa/src/Makefile.am
@@ -5,6 +5,7 @@ AM_CPPFLAGS = -I$(top_srcdir)/src/npa -I$(top_srcdir)/src/opensc/src
 libnpa_la_SOURCES = sm.c scutil.c npa.c sslutil.c
 libnpa_la_LIBADD = $(OPENSSL_LIBS) $(OPENSC_LIBS)
 libnpa_la_CFLAGS = $(OPENSSL_CFLAGS)
+libnpa_la_LDFLAGS = -no-undefined
 
 npa_tool_SOURCES = npa-tool.c binutil.c
 npa_tool_LDADD = $(OPENSSL_LIBS) $(OPENSC_LIBS) libnpa.la