diff --git a/emulator/bthost.c b/emulator/bthost.c
index c7d59ee..8c40fce 100644
--- a/emulator/bthost.c
+++ b/emulator/bthost.c
@@ -59,7 +59,7 @@
 /* RFCOMM FCS calculation */
 #define CRC(data) (rfcomm_crc_table[rfcomm_crc_table[0xff ^ data[0]] ^ data[1]])
 
-static unsigned char rfcomm_crc_table[256] = {
+static const unsigned char rfcomm_crc_table[256] = {
 	0x00, 0x91, 0xe3, 0x72, 0x07, 0x96, 0xe4, 0x75,
 	0x0e, 0x9f, 0xed, 0x7c, 0x09, 0x98, 0xea, 0x7b,
 	0x1c, 0x8d, 0xff, 0x6e, 0x1b, 0x8a, 0xf8, 0x69,