diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 6eeafc7..64d662e 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -41,7 +41,7 @@
 #include "polarssl/des.h"
 #include "polarssl/debug.h"
 #include "polarssl/ssl.h"
-#include "polarssl/sha2.h"
+#include "polarssl/sha256.h"
 
 #if defined(POLARSSL_GCM_C)
 #include "polarssl/gcm.h"