1 files changed, 3 insertions, 1 deletions
diff --git a/src/crypto/sha1.h b/src/crypto/sha1.h
index 6efde78a5b..b16f2c88ce 100644
--- a/src/crypto/sha1.h
+++ b/src/crypto/sha1.h
@@ -16,9 +16,11 @@ private:
     size_t bytes;
 
 public:
+    static const size_t OUTPUT_SIZE = 20;
+
     CSHA1();
     CSHA1& Write(const unsigned char *data, size_t len);
-    void Finalize(unsigned char *hash);
+    void Finalize(unsigned char hash[OUTPUT_SIZE]);
     CSHA1& Reset();
 };