diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4537ea248..b04810e1a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -34,7 +34,7 @@ include_directories("${INC_DIR}/compatibility")
 # Version.
 set(CENTREON_ENGINE_MAJOR 19)
 set(CENTREON_ENGINE_MINOR 10)
-set(CENTREON_ENGINE_PATCH 2)
+set(CENTREON_ENGINE_PATCH 3)
 if (CENTREON_ENGINE_PRERELEASE)
   set(CENTREON_ENGINE_VERSION "${CENTREON_ENGINE_MAJOR}.${CENTREON_ENGINE_MINOR}.${CENTREON_ENGINE_PATCH}-${CENTREON_ENGINE_PRERELEASE}")
 else ()
diff --git a/doc/release_notes/engine19.10.rst b/doc/release_notes/engine19.10.rst
index 0fd231849..8252afb12 100644
--- a/doc/release_notes/engine19.10.rst
+++ b/doc/release_notes/engine19.10.rst
@@ -1,3 +1,15 @@
+=======================
+Centreon Engine 19.10.3
+=======================
+
+*********
+Bug fixes
+*********
+
+Service escalation not well resolved
+====================================
+Service configurations look up failed when service escalations were defined.
+
 =======================
 Centreon Engine 19.10.2
 =======================
diff --git a/inc/com/centreon/engine/configuration/state.hh b/inc/com/centreon/engine/configuration/state.hh
index a35db9485..130790d93 100644
--- a/inc/com/centreon/engine/configuration/state.hh
+++ b/inc/com/centreon/engine/configuration/state.hh
@@ -354,8 +354,6 @@ namespace               configuration {
                         servicegroups_find(servicegroup::key_type const& k);
     set_service const&  services() const throw ();
     set_service&        services() throw ();
-    set_service::const_iterator
-                        services_find(service::key_type const& k) const;
     set_service::iterator
                         services_find(service::key_type const& k);
     set_service::const_iterator
diff --git a/src/configuration/state.cc b/src/configuration/state.cc
index 4ff113a0c..5af2316de 100644
--- a/src/configuration/state.cc
+++ b/src/configuration/state.cc
@@ -2954,31 +2954,6 @@ set_service& state::services() throw () {
   return _services;
 }
 
-/**
- *  Get service by its key.
- *
- *  @param[in] k Service name.
- *
- *  @return Iterator to the element if found, services().end()
- *          otherwise.
- */
-set_service::const_iterator state::services_find(
-                                   service::key_type const& k) const {
-  configuration::service below_searched;
-  below_searched.set_host_id(k.first);
-  below_searched.set_service_id(k.second);
-  set_service::const_iterator it{_services.upper_bound(below_searched)};
-  if (it != _services.end()
-      && it->host_id() == k.first
-      && it->service_id() == k.second)
-    return it;
-  else if (it != _services.begin()
-           && (--it)->host_id() == k.first
-           && it->service_id() == k.second)
-    return it;
-  return _services.end();
-}
-
 /**
  *  Get service by its key.
  *
@@ -3006,19 +2981,12 @@ set_service::iterator state::services_find(
 
 set_service::const_iterator state::services_find(
     std::string const& host_name, std::string const& service_desc) const {
-  configuration::service below_searched;
-  below_searched.hosts().insert(host_name);
-  below_searched.service_description() = service_desc;
-  set_service::iterator
-    it(_services.upper_bound(below_searched));
-  if (it != _services.end()
-      && *it->hosts().begin() == host_name
-      && it->service_description() == service_desc)
-    return it;
-  else if (it != _services.begin()
-           && *(--it)->hosts().begin() == host_name
-           && it->service_description() == service_desc)
-    return it;
+  for (auto it = _services.begin(), end = _services.end();
+       it != end; ++it) {
+    if (it->service_description() == service_desc
+        && *it->hosts().begin() == host_name)
+      return it;
+  }
   return _services.end();
 }