diff --git a/include/mbedtls/chachapoly.h b/include/mbedtls/chachapoly.h
index 1007f95..7c36739 100644
--- a/include/mbedtls/chachapoly.h
+++ b/include/mbedtls/chachapoly.h
@@ -31,6 +31,7 @@
 
 #ifndef MBEDTLS_CHACHAPOLY_H
 #define MBEDTLS_CHACHAPOLY_H
+#include "mbedtls/private_access.h"
 
 #if !defined(MBEDTLS_CONFIG_FILE)
 #include "mbedtls/config.h"
@@ -61,12 +62,12 @@
 
 typedef struct mbedtls_chachapoly_context
 {
-    mbedtls_chacha20_context chacha20_ctx;  /**< The ChaCha20 context. */
-    mbedtls_poly1305_context poly1305_ctx;  /**< The Poly1305 context. */
-    uint64_t aad_len;                       /**< The length (bytes) of the Additional Authenticated Data. */
-    uint64_t ciphertext_len;                /**< The length (bytes) of the ciphertext. */
-    int state;                              /**< The current state of the context. */
-    mbedtls_chachapoly_mode_t mode;         /**< Cipher mode (encrypt or decrypt). */
+    mbedtls_chacha20_context MBEDTLS_PRIVATE(chacha20_ctx);  /**< The ChaCha20 context. */
+    mbedtls_poly1305_context MBEDTLS_PRIVATE(poly1305_ctx);  /**< The Poly1305 context. */
+    uint64_t MBEDTLS_PRIVATE(aad_len);                       /**< The length (bytes) of the Additional Authenticated Data. */
+    uint64_t MBEDTLS_PRIVATE(ciphertext_len);                /**< The length (bytes) of the ciphertext. */
+    int MBEDTLS_PRIVATE(state);                              /**< The current state of the context. */
+    mbedtls_chachapoly_mode_t MBEDTLS_PRIVATE(mode);         /**< Cipher mode (encrypt or decrypt). */
 }
 mbedtls_chachapoly_context;