diff --git a/library/cmac.c b/library/cmac.c
index 35cca16..06f8eec 100644
--- a/library/cmac.c
+++ b/library/cmac.c
@@ -783,8 +783,8 @@
         {
             /* When CMAC is implemented by an alternative implementation, or
              * the underlying primitive itself is implemented alternatively,
-             * certain features (e.g. AES-192) may be unavailable. This should
-             * not cause the selftest function to fail. */
+             * AES-192 may be unavailable. This should not cause the selftest
+             * function to fail. */
             if( ( ret == MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED ||
                   ret == MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE ) &&
                   cipher_type == MBEDTLS_CIPHER_AES_192_ECB ) {
@@ -867,8 +867,8 @@
         {
             /* When CMAC is implemented by an alternative implementation, or
              * the underlying primitive itself is implemented alternatively,
-             * certain features (e.g. AES-192) may be unavailable. This should
-             * not cause the selftest function to fail. */
+             * AES-192 may be unavailable. This should not cause the selftest
+             * function to fail. */
             if( ( ret == MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED ||
                   ret == MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE ) &&
                   cipher_type == MBEDTLS_CIPHER_AES_192_ECB ) {