diff --git a/src/cryptonote_basic/cryptonote_basic.h b/src/cryptonote_basic/cryptonote_basic.h
index 127958796..317773705 100644
--- a/src/cryptonote_basic/cryptonote_basic.h
+++ b/src/cryptonote_basic/cryptonote_basic.h
@@ -182,7 +182,7 @@ namespace cryptonote
 
     BEGIN_SERIALIZE()
       VARINT_FIELD(version)
-      if(version == 0 || CURRENT_TRANSACTION_VERSION < version) return false;
+      if((version == 0 || CURRENT_TRANSACTION_VERSION < version)) return false;
       VARINT_FIELD(unlock_time)
       FIELD(vin)
       FIELD(vout)