diff --git a/include/mbedtls/ccm.h b/include/mbedtls/ccm.h
index 2b9909e..f9f8000 100644
--- a/include/mbedtls/ccm.h
+++ b/include/mbedtls/ccm.h
@@ -87,6 +87,9 @@
                                                 #MBEDTLS_CCM_DECRYPT or
                                                 #MBEDTLS_CCM_STAR_ENCRYPT or
                                                 #MBEDTLS_CCM_STAR_DECRYPT. */
+    int MBEDTLS_PRIVATE(state);              /*!< Working value holding context's
+                                                  state. Used for chunked data
+                                                  input */
 }
 mbedtls_ccm_context;