1 files changed, 1 insertions, 1 deletions

diff --git a/src/unstable/synchrohash.h b/src/unstable/synchrohash.h
index 45572c2..19433e7 100644
--- a/src/unstable/synchrohash.h
+++ b/src/unstable/synchrohash.h
@@ -217,7 +217,7 @@ namespace Bu
 
     private:
         HashType hCore;
-        ReadWriteMutex mCore;
+        mutable ReadWriteMutex mCore;
     };
 }