diff --git a/source/windows/bcrypt_aes.c b/source/windows/bcrypt_aes.c
index 3f56be5b..ce62637f 100644
--- a/source/windows/bcrypt_aes.c
+++ b/source/windows/bcrypt_aes.c
@@ -307,7 +307,7 @@ static int s_aes_default_encrypt(
     struct aws_byte_buf *out) {
     struct aes_bcrypt_cipher *cipher_impl = cipher->impl;
 
-    AWS_LOGF_DEBUG(0, "foo %zu", to_encrypt.len);
+    AWS_LOGF_DEBUG(0, "foo %zu", to_encrypt->len);
     //if (to_encrypt->len == 0 && cipher_impl->auth_info_ptr == NULL) {
     //    return AWS_OP_SUCCESS;
     //}