diff --git a/convert_to_osm_tags.ts b/convert_to_osm_tags.ts
index bbd2743..3b2dcfe 100644
--- a/convert_to_osm_tags.ts
+++ b/convert_to_osm_tags.ts
@@ -10,7 +10,7 @@ import mappingConfigIRVEFromOsmose from './mappings/converters/configIRVE_osmose
 import mappingConfigIRVE_simple from './mappings/converters/mappingConfigIRVE_simple'
 import mappingTest from './mappings/converters/configTest'
 import mapping_engine from './mappings/engine'
-import {BoundingBoxCoordinatesType, FeatureCollection} from "./mappings/mapping-config.type";
+import MappingConfigType, {BoundingBoxCoordinatesType, FeatureCollection} from "./mappings/mapping-config.type";
 import utils from './mappings/utils'
 import mappingRouenParkingVelos from "./mappings/converters/configRouen_OpenData_velo_parkings";
 
@@ -146,7 +146,7 @@ function writeFile(fileName: string, fileContent: any) {
  * @param pointCounterMax
  * @param boundingBoxCoordinates
  */
-function convertDataFromSource(sourceFilePath: string, mapping: any, pointCounterMax: number, boundingBoxCoordinates: any) {
+function convertDataFromSource(sourceFilePath: string, mapping: MappingConfigType, pointCounterMax: number, boundingBoxCoordinates: any) {
     debugLog('convert data: source file from :', sourceFilePath)
 
     fs.readFile(sourceFilePath, 'utf8', function (err, data) {
@@ -177,8 +177,10 @@ function convertDataFromSource(sourceFilePath: string, mapping: any, pointCounte
 
                 let regex_filter_test_result = true
                 let remove_original_key = false;
-                feature_point.properties.tags.forEach((tagKey:string,  tagValue:string)=>{
-                    if (this.mapping_config.filters.exclude_point_if_tag_not_empty.indexOf(tagKey) !== -1 && tagValue.length && tagValue !== 'null') {
+                feature_point.properties.tags?.forEach((tagKey:string,  tagValue:string)=>{
+                    if (mapping.filters && mapping.filters.exclude_point_if_tag_not_empty?.indexOf(tagKey) !== -1
+                        && tagValue.length
+                        && tagValue !== 'null') {
                         remove_original_key = true;
                     }
                 })