diff --git a/VolumeManager.h b/VolumeManager.h
index 4399b76..198b5a9 100644
--- a/VolumeManager.h
+++ b/VolumeManager.h
@@ -117,6 +117,8 @@
     int unmountObb(const char *fileName, bool force);
     int getObbMountPath(const char *id, char *buffer, int maxlen);
 
+    Volume* getVolumeForFile(const char *fileName);
+
     /* Shared between ASEC and Loopback images */
     int unmountLoopImage(const char *containerId, const char *loopId,
             const char *fileName, const char *mountPoint, bool force);