diff --git a/src/usb/Makefile.am b/src/usb/Makefile.am
index bca39bf..03cd482 100644
--- a/src/usb/Makefile.am
+++ b/src/usb/Makefile.am
@@ -12,8 +12,8 @@ if ENABLE_LIBUSB
 lib_LTLIBRARIES = libosmousb.la
 
 libosmousb_la_SOURCES = osmo_libusb.c
-libosmosim_la_LDFLAGS = -version-info $(LIBVERSION)
-libosmosim_la_LIBADD = \
+libosmousb_la_LDFLAGS = -version-info $(LIBVERSION) -no-undefined
+libosmousb_la_LIBADD = \
 	$(top_builddir)/src/libosmocore.la \
 	$(TALLOC_LIBS) \
 	$(LIBUSB_LIBS)