1 files changed, 1 insertions, 0 deletions

diff --git a/include/opkele/util-internal.h b/include/opkele/util-internal.h
index ec091ce..258e129 100644
--- a/include/opkele/util-internal.h
+++ b/include/opkele/util-internal.h
@@ -1,29 +1,30 @@
 #ifndef __OPKELE_UTIL_INTERNAL_H
 #define __OPKELE_UTIL_INTERNAL_H
 
 #include <openssl/bn.h>
 #include <openssl/dh.h>
+#include <opkele/types.h>
 
 namespace opkele {
     namespace util {
 
         /**
          * Convenience class encapsulating SSL BIGNUM object for the purpose of
          * automatical freeing.
          */
         class bignum_t {
             public:
                 BIGNUM *_bn;
 
                 bignum_t() : _bn(0) { }
                 bignum_t(BIGNUM *bn) : _bn(bn) { }
                 ~bignum_t() throw() { if(_bn) BN_free(_bn); }
                 
                 bignum_t& operator=(BIGNUM *bn) { if(_bn) BN_free(_bn); _bn = bn; return *this; }
 
                 operator const BIGNUM*(void) const { return _bn; }
                 operator BIGNUM*(void) { return _bn; }
         };
         /**
          * Convenience clas encapsulating SSL DH object for the purpose of
          * automatic freeing.