diff --git a/mapping_geojson_to_osm_tags/mappings/engine.ts b/mapping_geojson_to_osm_tags/mappings/engine.ts
index 3c5da5c9..e47989a8 100644
--- a/mapping_geojson_to_osm_tags/mappings/engine.ts
+++ b/mapping_geojson_to_osm_tags/mappings/engine.ts
@@ -73,7 +73,7 @@ export default class {
     // }
 
     filterFeaturesByPropertyRegex(propertyName: string, criteriaRegex: any, listOfFeatures: any) {
-        let filteredList = listOfFeatures.filter((feature:any) => {
+        let filteredList = listOfFeatures.filter((feature: any) => {
             return criteriaRegex.test(feature?.properties[propertyName])
         })
         return filteredList
@@ -126,18 +126,20 @@ export default class {
      */
     convertProperty(pointKeyName: string, mappingKeys: any, featurePoint: any, newProperties: any) {
         debugLog('convertProperty: pointKeyName', pointKeyName)
-        debugLog('convertProperty: mappingKeys', mappingKeys)
-        if (mappingKeys.indexOf(pointKeyName) !== -1) {
-            debugLog('convertProperty: found element', pointKeyName, '=>', this.mapping_config[pointKeyName], 'value : ', featurePoint.properties[pointKeyName])
+        // debugLog('convertProperty: mappingKeys', mappingKeys)
+        if (mappingKeys.indexOf(pointKeyName) > 0) {
+            let valueConvertedFromMapping = featurePoint.properties[pointKeyName]
+            let keyConvertedFromMapping = mappingKeys[mappingKeys.indexOf(pointKeyName)]
+
+            debugLog('convertProperty: found element', pointKeyName, '=>', keyConvertedFromMapping, 'value : ', valueConvertedFromMapping)
             let convertedValue = ''
 
-            let valueConvertedFromMapping = featurePoint.properties[pointKeyName]
             let typeofValue = typeof valueConvertedFromMapping
             let isStringValue = typeofValue === 'string'
             debugLog('convertProperty: - typeofValue', typeofValue)
             debugLog('convertProperty: - pointKeyName', pointKeyName)
             debugLog('convertProperty: - valueConvertedFromMapping', valueConvertedFromMapping)
-            // debugLog('typeof featurePoint.properties[pointKeyName] === \'string\'', typeofValue)
+            debugLog('typeof valueConvertedFromMapping === \'string\'', typeofValue)
 
             let isConfigMappingObject = typeofValue === 'string'
 
@@ -154,7 +156,7 @@ export default class {
                 }
                 debugLog('convertProperty: -- convertedValue', convertedValue)
                 if (convertedValue) {
-                    newProperties[this.mapping_config[pointKeyName]] = convertedValue
+                    newProperties[keyConvertedFromMapping] = convertedValue
                 }
             } else if (isConfigMappingObject) {
                 debugLog('convertProperty: is config object')
diff --git a/mapping_geojson_to_osm_tags/mappings/utils.ts b/mapping_geojson_to_osm_tags/mappings/utils.ts
index ab92e29a..42752810 100644
--- a/mapping_geojson_to_osm_tags/mappings/utils.ts
+++ b/mapping_geojson_to_osm_tags/mappings/utils.ts
@@ -1,7 +1,7 @@
 import fs from 'fs'
 
 let show_debug = 0
-// show_debug = 1
+show_debug = 1
 let output_folder = 'output';
 
 console.log('----------------------show_debug', show_debug)
@@ -12,7 +12,7 @@ console.log('----------------------show_debug', show_debug)
  */
 function debugLog(...args: any[]) {
     if (show_debug) {
-        // console.log('### debug: ', ...args)
+        console.log('### debug: ', ...args)
     }
 }
 
diff --git a/mapping_geojson_to_osm_tags/output/my_converted_data_set.json b/mapping_geojson_to_osm_tags/output/my_converted_data_set.json
index 3cc3a6de..930265bb 100644
--- a/mapping_geojson_to_osm_tags/output/my_converted_data_set.json
+++ b/mapping_geojson_to_osm_tags/output/my_converted_data_set.json
@@ -11,7 +11,8 @@
         ]
       },
       "properties": {
-        "undefined": "891624884"
+        "nom_amenageur": "ELECTRA",
+        "siren_amenageur": "891624884"
       }
     }
   ]