diff --git a/3party/osrm/osrm-backend/CMakeLists.txt b/3party/osrm/osrm-backend/CMakeLists.txt
index cf671d6345..ad438ae1de 100755
--- a/3party/osrm/osrm-backend/CMakeLists.txt
+++ b/3party/osrm/osrm-backend/CMakeLists.txt
@@ -150,6 +150,11 @@ if(CMAKE_BUILD_TYPE MATCHES Release)
   endif()
 endif()
 
+if (UNIX)
+    message("Multithreaded OSRM structures build!")
+    add_definitions(-DMT_STRUCTURES) # Unlocks multithreaded structs are not availible on mobile devices.
+endif()
+
 # Configuring compilers
 if(${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang")
   # using Clang
diff --git a/3party/osrm/osrm-backend/data_structures/search_engine_data.hpp b/3party/osrm/osrm-backend/data_structures/search_engine_data.hpp
index a1c07fbb10..2d5c57b63a 100755
--- a/3party/osrm/osrm-backend/data_structures/search_engine_data.hpp
+++ b/3party/osrm/osrm-backend/data_structures/search_engine_data.hpp
@@ -28,7 +28,8 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef SEARCH_ENGINE_DATA_HPP
 #define SEARCH_ENGINE_DATA_HPP
 
-#ifdef LINUX
+// Unlock multithread local storage for online osrm engine.
+#ifdef MT_STRUCTURES
 #include <boost/thread/tss.hpp>
 #else
 #include <boost/scoped_ptr.hpp>
@@ -46,7 +47,7 @@ struct HeapData
 struct SearchEngineData
 {
     using QueryHeap = BinaryHeap<NodeID, NodeID, int, HeapData, UnorderedMapStorage<NodeID, int>>;
-#ifdef LINUX
+#ifdef MT_STRUCTURES
     using SearchEngineHeapPtr = boost::thread_specific_ptr<QueryHeap>;
 #else
     using SearchEngineHeapPtr = boost::scoped_ptr<QueryHeap>;
diff --git a/3party/osrm/osrm-backend/plugins/MapsMePlugin.hpp b/3party/osrm/osrm-backend/plugins/MapsMePlugin.hpp
index d310f6cea9..eb255a7643 100644
--- a/3party/osrm/osrm-backend/plugins/MapsMePlugin.hpp
+++ b/3party/osrm/osrm-backend/plugins/MapsMePlugin.hpp
@@ -62,6 +62,9 @@ public:
         : m_descriptorString("mapsme"), m_facade(facade),
           m_reader(baseDir + '/' + PACKED_POLYGONS_FILE)
     {
+#ifndef MT_STRUCTURES
+        SimpleLogger().Write(logWARNING) << "Multitreaded storage was not set on compile time!!! Do not use osrm-routed in several threads."
+#endif
         if (!osrm::LoadNodeDataFromFile(nodeDataFile, m_nodeData))
         {
           SimpleLogger().Write(logDEBUG) << "Can't load node data";