diff --git a/include/mbedtls/ssl_internal.h b/include/mbedtls/ssl_internal.h
index c0a5db7be..0b1f453e8 100644
--- a/include/mbedtls/ssl_internal.h
+++ b/include/mbedtls/ssl_internal.h
@@ -573,6 +573,9 @@ struct mbedtls_ssl_handshake_params
 
 #if defined(MBEDTLS_USE_TINYCRYPT)
     uint8_t ecdh_privkey[NUM_ECC_BYTES];
+#if defined(MBEDTLS_EARLY_KEY_COMPUTATION)
+    uint8_t ecdh_publickey[2*NUM_ECC_BYTES];
+#endif /* MBEDTLS_EARLY_KEY_COMPUTATION */
     uint8_t ecdh_peerkey[2*NUM_ECC_BYTES];
 #endif /* MBEDTLS_USE_TINYCRYPT */