diff --git a/openbsc/tests/bsc-nat/bsc_data.c b/openbsc/tests/bsc-nat/bsc_data.c
index 08b900b..d8a0c87 100644
--- a/openbsc/tests/bsc-nat/bsc_data.c
+++ b/openbsc/tests/bsc-nat/bsc_data.c
@@ -127,6 +127,15 @@
 0xbf, 0xeb, 0x20
 };
 
+static const uint8_t smsc_rewrite_num_patched[] = {
+0x00, 0x30, 0xfd, 0x06, 0x01, 0x13, 0x1e, 0x00,
+0x01, 0x29, 0x01, 0x03, 0x26, 0x09, 0x01, 0x23,
+0x00, 0x0c, 0x00, 0x07, 0x91, 0x36, 0x19, 0x08,
+0x00, 0x10, 0x50, 0x17, 0x21, 0x0c, 0x0f, 0x81,
+0x00, 0x23, 0x51, 0x87, 0x86, 0x78, 0x46, 0xf5,
+0x00, 0x00, 0x09, 0xcc, 0xb7, 0xbd, 0x0c, 0xca,
+0xbf, 0xeb, 0x20
+};
 
 /*
  * MGCP messages