--- a/extcap/Makefile.am
+++ b/extcap/Makefile.am
@@ -46,6 +46,7 @@
 	../wiretap/libwiretap.la	\
 	../wsutil/libwsutil.la		\
 	@GLIB_LIBS@			\
+	@PCAP_LIBS@			\
 	@SOCKET_LIBS@
 
 if ENABLE_STATIC