diff --git a/solution/tc_project_app/tc_project_app.plcproj b/solution/tc_project_app/tc_project_app.plcproj
index 070a387..dd7d128 100644
--- a/solution/tc_project_app/tc_project_app.plcproj
+++ b/solution/tc_project_app/tc_project_app.plcproj
@@ -131,6 +131,9 @@
     <Compile Include="tc_mca_std_lib\GVLs\GVL.TcGVL">
       <SubType>Code</SubType>
     </Compile>
+    <Compile Include="tc_mca_std_lib\POUs\FB_AxisTemperature.TcPOU">
+      <SubType>Code</SubType>
+    </Compile>
     <Compile Include="tc_mca_std_lib\POUs\FB_ESSMonitoring.TcPOU">
       <SubType>Code</SubType>
     </Compile>