diff --git a/trunk/src/common/crypto.h b/trunk/src/common/crypto.h
index 44ea11f824..36bc21fcaa 100644
--- a/trunk/src/common/crypto.h
+++ b/trunk/src/common/crypto.h
@@ -12,7 +12,9 @@
 #define CIPHER_IV_LEN 0
 #define PK_BITS 1024
 #define PK_BYTES (PK_BITS/8)
-#define CRYPTO_DH_SIZE (1024 / 8)
+#define DH_BITS 1024
+#define DH_BYTES (DH_BITS/8)
+#define CRYPTO_DH_SIZE DH_BYTES
 
 #define PK_NO_PADDING         60000
 #define PK_PKCS1_PADDING      60001