diff --git a/openbsc/tests/gprs/Makefile.am b/openbsc/tests/gprs/Makefile.am
index 904d567..193655f 100644
--- a/openbsc/tests/gprs/Makefile.am
+++ b/openbsc/tests/gprs/Makefile.am
@@ -5,4 +5,5 @@
 
 noinst_PROGRAMS = gprs_test
 
-gprs_test_SOURCES = gprs_test.c
+gprs_test_SOURCES = gprs_test.c $(top_srcdir)/src/gprs/gprs_utils.c
+gprs_test_LDADD = $(LIBOSMOCORE_LIBS)