1 files changed, 3 insertions, 2 deletions
diff --git a/src/server/shared/Cryptography/BigNumber.h b/src/server/shared/Cryptography/BigNumber.h
index dc553babec9..7de53b442ae 100644
--- a/src/server/shared/Cryptography/BigNumber.h
+++ b/src/server/shared/Cryptography/BigNumber.h
@@ -21,6 +21,7 @@
 
 #include "Define.h"
 #include <ace/Auto_Ptr.h>
+#include <string>
 
 struct bignum_st;
 
@@ -89,8 +90,8 @@ class BigNumber
 
         ACE_Auto_Array_Ptr<uint8> AsByteArray(int32 minSize = 0, bool littleEndian = true);
 
-        char * AsHexStr() const;
-        char * AsDecStr() const;
+        std::string AsHexStr() const;
+        std::string AsDecStr() const;
 
     private:
         struct bignum_st *_bn;