diff --git a/main.py b/main.py
index ad281e75..45f4e487 100644
--- a/main.py
+++ b/main.py
@@ -64,6 +64,7 @@ from B08_Quantity.B08_Quantity_Router import router as b08_quantity_router
 from B08_Quantity.B08_Quantity_Router_Earthwork import router as b08_earthwork_router
 from B08_Quantity.B08_Quantity_Router_Material import router as b08_material_router
 from B08_Quantity.B08_Quantity_Router_StructureSheet import router as b08_structure_sheet_router
+from B08_Quantity.B08_Quantity_Router_StmateLibrary import router as b08_stmate_library_router
 from B09_Estimation.B09_Estimation_Router import router as b09_estimation_router
 from B09_Estimation.B09_Estimation_Router_Contract import router as b09_contract_router
 from B09_Estimation.B09_Estimation_Router_Execution import router as b09_execution_router
@@ -644,6 +645,7 @@ app.include_router(b08_quantity_router, dependencies=protected_with_company)
 app.include_router(b08_earthwork_router, dependencies=protected_with_company)
 app.include_router(b08_material_router, dependencies=protected_with_company)
 app.include_router(b08_structure_sheet_router, dependencies=protected_with_company)
+app.include_router(b08_stmate_library_router, dependencies=protected_with_company)
 app.include_router(b09_estimation_router, dependencies=protected_with_company)
 app.include_router(b09_cost_sheet_router, dependencies=protected_with_company)
 app.include_router(b09_contract_router, dependencies=protected_with_company)