diff --git a/map/routing_session.cpp b/map/routing_session.cpp
index 776cff2b21..8138160de2 100644
--- a/map/routing_session.cpp
+++ b/map/routing_session.cpp
@@ -40,7 +40,7 @@ void RoutingSession::RebuildRoute(m2::PointD const & startPoint, TReadyCallbackF
 
   // Use old-style callback constraction, because lambda constructs buggy function on Android
   // (callback param isn't captured by value).
-  m_router->CalculateRoute(startPoint, DoReadyCallback(*this, callback), startPoint - m_lastGoodPosition);
+  m_router->CalculateRoute(startPoint, DoReadyCallback(*this, callback, m_routeSessionMutex), startPoint - m_lastGoodPosition);
 }
 
 void RoutingSession::DoReadyCallback::operator() (Route & route, IRouter::ResultCode e)
@@ -50,6 +50,8 @@ void RoutingSession::DoReadyCallback::operator() (Route & route, IRouter::Result
   else
     m_rs.m_state = RouteNotReady;
 
+  threads::MutexGuard guard(m_routeSessionMutexInner);
+  UNUSED_VALUE(guard);
   m_callback(m_rs.m_route, e);
 }
 
diff --git a/map/routing_session.hpp b/map/routing_session.hpp
index e97e621aa5..647f47ff56 100644
--- a/map/routing_session.hpp
+++ b/map/routing_session.hpp
@@ -66,15 +66,15 @@ private:
   {
     RoutingSession & m_rs;
     TReadyCallbackFn m_callback;
+    threads::Mutex & m_routeSessionMutexInner;
 
-    DoReadyCallback(RoutingSession & rs, TReadyCallbackFn const & cb)
-      : m_rs(rs), m_callback(cb)
+    DoReadyCallback(RoutingSession & rs, TReadyCallbackFn const & cb, threads::Mutex & routeSessionMutex)
+      : m_rs(rs), m_callback(cb), m_routeSessionMutexInner(routeSessionMutex)
     {
     }
 
     void operator() (Route & route, IRouter::ResultCode e);
   };
-
   void AssignRoute(Route & route);
 
 private: