diff --git a/openbsc/tests/bsc-nat/bsc_data.c b/openbsc/tests/bsc-nat/bsc_data.c
index 6a984f6..96dda7f 100644
--- a/openbsc/tests/bsc-nat/bsc_data.c
+++ b/openbsc/tests/bsc-nat/bsc_data.c
@@ -137,6 +137,16 @@
 0xbf, 0xeb, 0x20
 };
 
+static const uint8_t smsc_rewrite_num_patched_tp_srr[] = {
+0x00, 0x2f, 0xfd, 0x06, 0x01, 0x13, 0x1e, 0x00,
+0x01, 0x28, 0x01, 0x03, 0x25, 0x09, 0x01, 0x22,
+0x00, 0x0c, 0x00, 0x07, 0x91, 0x36, 0x19, 0x08,
+0x00, 0x10, 0x50, 0x16, 0x01, 0x0c, 0x0d, 0x91,
+      0x23, 0x51, 0x87, 0x86, 0x78, 0x46, 0xf5,
+0x00, 0x00, 0x09, 0xcc, 0xb7, 0xbd, 0x0c, 0xca,
+0xbf, 0xeb, 0x20
+};
+
 /*
  * MGCP messages
  */