diff --git a/include/polarssl/x509_crl.h b/include/polarssl/x509_crl.h
index bae8182..2bc7cd8 100644
--- a/include/polarssl/x509_crl.h
+++ b/include/polarssl/x509_crl.h
@@ -135,6 +135,13 @@
                         const x509_crl *crl );
 
 /**
+ * \brief          Initialize a CRL (chain)
+ *
+ * \param crl      CRL chain to initialize
+ */
+void x509_crl_init( x509_crl *crl );
+
+/**
  * \brief          Unallocate all CRL data
  *
  * \param crl      CRL chain to free