diff --git a/configs/config-ccm-psk-tls1_2.h b/configs/config-ccm-psk-tls1_2.h
index 776179d..3844383 100644
--- a/configs/config-ccm-psk-tls1_2.h
+++ b/configs/config-ccm-psk-tls1_2.h
@@ -57,7 +57,7 @@
 
 /*
  * Save RAM at the expense of interoperability: do this only if you control
- * both ends of the connection!  (See comments in "polarssl/ssl.h".)
+ * both ends of the connection!  (See comments in "mbedtls/ssl.h".)
  * The optimal size here depends on the typical size of records.
  */
 #define SSL_MAX_CONTENT_LEN             512