diff --git a/openbsc/tests/gbproxy/Makefile.am b/openbsc/tests/gbproxy/Makefile.am
index 9c1b2d0..409d791 100644
--- a/openbsc/tests/gbproxy/Makefile.am
+++ b/openbsc/tests/gbproxy/Makefile.am
@@ -11,6 +11,7 @@
 			$(top_builddir)/src/gprs/gb_proxy.o \
 			$(top_builddir)/src/gprs/gprs_llc_parse.o \
 			$(top_builddir)/src/gprs/crc24.o \
+			$(top_builddir)/src/gprs/gprs_utils.o \
 			$(top_builddir)/src/libcommon/libcommon.a \
 			$(top_builddir)/src/libbsc/libbsc.a \
 			$(top_builddir)/src/libtrau/libtrau.a \
diff --git a/openbsc/tests/gbproxy/gbproxy_test.c b/openbsc/tests/gbproxy/gbproxy_test.c
index 9fceabf..0d14d21 100644
--- a/openbsc/tests/gbproxy/gbproxy_test.c
+++ b/openbsc/tests/gbproxy/gbproxy_test.c
@@ -30,6 +30,7 @@
 #include <osmocom/gprs/gprs_bssgp.h>
 
 #include <openbsc/gb_proxy.h>
+#include <openbsc/gprs_utils.h>
 #include <openbsc/debug.h>
 
 #define REMOTE_BSS_ADDR 0x01020304
@@ -944,7 +945,7 @@
 	gbcfg.core_mcc = 123;
 	gbcfg.core_mnc = 456;
 	gbcfg.core_apn = talloc_zero_size(NULL, 100);
-	gbcfg.core_apn_size = gbprox_str_to_apn(gbcfg.core_apn, "foo.bar", 100);
+	gbcfg.core_apn_size = gprs_str_to_apn(gbcfg.core_apn, "foo.bar", 100);
 
 	configure_sgsn_peer(&sgsn_peer);
 	configure_bss_peers(bss_peer, ARRAY_SIZE(bss_peer));