diff --git a/src/devices/celsia_czc1.c b/src/devices/celsia_czc1.c
index 57729d2a..78089a26 100644
--- a/src/devices/celsia_czc1.c
+++ b/src/devices/celsia_czc1.c
@@ -110,7 +110,7 @@ static int celsia_czc1_decode(r_device *decoder, bitbuffer_t *bitbuffer)
     }
 
     // Check if a 0x00 pair packet or a 0xf0 command packet
-    if (b[2] != 0x00 && b[2] == 0xf0) {
+    if (b[2] != 0x00 && b[2] != 0xf0) {
         decoder_log(decoder, 1, __func__, "Unknown packet type");
         return DECODE_FAIL_OTHER;
     }