diff --git a/include/pm3_cmd.h b/include/pm3_cmd.h
index e2087d0f4..d8336bd65 100644
--- a/include/pm3_cmd.h
+++ b/include/pm3_cmd.h
@@ -403,6 +403,8 @@ typedef struct {
 #define CMD_LF_IO_DEMOD                                                   0x021A
 #define CMD_LF_EM410X_DEMOD                                               0x021C
 #define CMD_LF_EM4X50_INFO                                                0x0240
+#define CMD_LF_EM4X50_WRITE                                               0x0241
+#define CMD_LF_EM4X50_WRITE_PASSWORD                                      0x0242
 // Sampling configuration for LF reader/sniffer
 #define CMD_LF_SAMPLING_SET_CONFIG                                        0x021D
 #define CMD_LF_FSK_SIMULATE                                               0x021E