diff --git a/library/ecdh.c b/library/ecdh.c
old mode 100644
new mode 100755
index fec88d0..58e67bf
--- a/library/ecdh.c
+++ b/library/ecdh.c
@@ -506,7 +506,7 @@
 #if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
         case MBEDTLS_ECDH_VARIANT_EVEREST:
         {
-            mbedtls_x25519_ecdh_side s = side == MBEDTLS_ECDH_OURS ?
+            mbedtls_everest_ecdh_side s = side == MBEDTLS_ECDH_OURS ?
                                                    MBEDTLS_EVEREST_ECDH_OURS :
                                                    MBEDTLS_EVEREST_ECDH_THEIRS;
             return( mbedtls_everest_get_params( &ctx->ctx.everest_ecdh,