diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index 6e03136..f6f431b 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -1674,11 +1674,11 @@
 /**
  * \def MBEDTLS_CMAC_C
  *
- * Enable the CMAC mode for 128-bit block cipher.
+ * Enable the CMAC mode for block ciphers.
  *
  * Module:  library/cmac.c
  *
- * Requires: MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C
+ * Requires: MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C or MBEDTLS_DES_C
  *
  */
 #define MBEDTLS_CMAC_C