diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index f6f431b..2a49642 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -1681,7 +1681,7 @@
  * Requires: MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C or MBEDTLS_DES_C
  *
  */
-#define MBEDTLS_CMAC_C
+//#define MBEDTLS_CMAC_C
 
 /**
  * \def MBEDTLS_CTR_DRBG_C