diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7f998809257a0391eb5fc034c6d3e7cdc7ee733f..cfbd59e3ac4f1e437bd2ecc6abb889d45a6a7898 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,8 +5,8 @@
 cmake_minimum_required(VERSION 2.6.4 FATAL_ERROR)
 project(OpenStructure CXX C)
 set (OST_VERSION_MAJOR 1)
-set (OST_VERSION_MINOR 2)
-set (OST_VERSION_PATCH 4)
+set (OST_VERSION_MINOR 3)
+set (OST_VERSION_PATCH 0)
 set (OST_VERSION_STRING ${OST_VERSION_MAJOR}.${OST_VERSION_MINOR}.${OST_VERSION_PATCH} )
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR}/cmake_support)
 include(OST)
diff --git a/modules/gui/src/tools/measure_tool.cc b/modules/gui/src/tools/measure_tool.cc
index 79de57b9689ca180c61b9e81a13034f2444394c2..5b4cc3d2cd039fb59cbf3bbe0bc6326bb2a8e2e6 100644
--- a/modules/gui/src/tools/measure_tool.cc
+++ b/modules/gui/src/tools/measure_tool.cc
@@ -205,7 +205,7 @@ Measurement::Measurement(mol::AtomHandleList ahl, gfx::Color col, Real line_widt
       name_=ahl_[0].GetQualifiedName()+" - "+ahl_[1].GetQualifiedName()+" - "
              +ahl_[2].GetQualifiedName();
       measurement_=57.2958*geom::Angle(ahl_[0].GetPos()-ahl_[1].GetPos(),
-                                       ahl_[1].GetPos()-ahl_[2].GetPos());
+                                       ahl_[2].GetPos()-ahl_[1].GetPos());
       valid_=true;
       break;
     }