diff --git a/wolftpm/tpm2.h b/wolftpm/tpm2.h
index 49190e44..ed1bc0cf 100644
--- a/wolftpm/tpm2.h
+++ b/wolftpm/tpm2.h
@@ -431,11 +431,6 @@ typedef enum {
     TPM_RC_EXT_MU             = RC_FMT1 + 0x02B,
     TPM_RC_ONE_SHOT_SIGNATURE = RC_FMT1 + 0x02C,
     TPM_RC_SIGN_CONTEXT_KEY   = RC_FMT1 + 0x02D,
-#endif
-#ifdef WOLFTPM_V185
-    /* Part 2 v1.85 Sec.6.6.3 Table 17 channel protocol codes */
-    TPM_RC_CHANNEL            = RC_FMT1 + 0x030,
-    TPM_RC_CHANNEL_KEY        = RC_FMT1 + 0x031,
 #endif
     RC_MAX_FMT1             = RC_FMT1 + 0x03F,