diff --git a/geoindicators/src/main/groovy/org/orbisgis/geoclimate/geoindicators/SpatialUnits.groovy b/geoindicators/src/main/groovy/org/orbisgis/geoclimate/geoindicators/SpatialUnits.groovy
index b6fa625506..f73a388d89 100644
--- a/geoindicators/src/main/groovy/org/orbisgis/geoclimate/geoindicators/SpatialUnits.groovy
+++ b/geoindicators/src/main/groovy/org/orbisgis/geoclimate/geoindicators/SpatialUnits.groovy
@@ -184,7 +184,7 @@ String prepareTSUData(JdbcDataSource datasource, String zone, String road, Strin
         return
     }
 
-    if (surface_urban_areas < 10000) {
+    if (surface_urban_areas <= 100) {
         error("The surface of urban areas must be greater or equal than 100 m²")
         return
     }
diff --git a/geoindicators/src/main/groovy/org/orbisgis/geoclimate/geoindicators/WorkflowGeoIndicators.groovy b/geoindicators/src/main/groovy/org/orbisgis/geoclimate/geoindicators/WorkflowGeoIndicators.groovy
index 897625ee1d..bb9c4795f6 100644
--- a/geoindicators/src/main/groovy/org/orbisgis/geoclimate/geoindicators/WorkflowGeoIndicators.groovy
+++ b/geoindicators/src/main/groovy/org/orbisgis/geoclimate/geoindicators/WorkflowGeoIndicators.groovy
@@ -1368,8 +1368,8 @@ Map estimateBuildingHeight(JdbcDataSource datasource, String zone, String buildi
                            String road, String rail, String vegetation,
                            String water, String impervious,
                            String building_estimate, String sea_land_mask, String urban_areas, String rsu,
-                           double surface_vegetation, double surface_hydro,
-                           double snappingTolerance, double surface_urban_areas, String buildingHeightModelName, String prefixName = "") {
+                           double surface_vegetation, double surface_hydro,double surface_urban_areas,
+                           double snappingTolerance, String buildingHeightModelName, String prefixName = "") {
     if (!building_estimate) {
         error "To estimate the building height a table that contains the list of building to estimate must be provided"
         return
diff --git a/osmtools/src/main/groovy/org/orbisgis/geoclimate/osmtools/utils/Utilities.groovy b/osmtools/src/main/groovy/org/orbisgis/geoclimate/osmtools/utils/Utilities.groovy
index 41599c3184..6b11f1d42c 100644
--- a/osmtools/src/main/groovy/org/orbisgis/geoclimate/osmtools/utils/Utilities.groovy
+++ b/osmtools/src/main/groovy/org/orbisgis/geoclimate/osmtools/utils/Utilities.groovy
@@ -269,11 +269,7 @@ boolean executeNominatimQuery(def query, def outputOSMFile) {
         connection = url.openConnection()
     }
     connection.requestMethod = "GET"
-    def user_agent = System.getProperty("OVERPASS_USER_AGENT")
-    if (!user_agent) {
-        user_agent = OSM_USER_AGENT
-    }
-    connection.setRequestProperty("User-Agent", user_agent)
+    connection.setRequestProperty("User-Agent", "GEOCLIMATE_${System.currentTimeMillis()}")
 
     connection.connect()
 
@@ -691,9 +687,6 @@ static @Field OVERPASS_BASE_URL = "${OVERPASS_ENDPOINT}/interpreter?data="
 /** Url of the status of the Overpass server */
 static @Field OVERPASS_STATUS_URL = "${OVERPASS_ENDPOINT}/status"
 
-/** Default user agent*/
-static @Field OSM_USER_AGENT = "geoclimate"
-
 /** OVERPASS TIMEOUT */
 static @Field int OVERPASS_TIMEOUT = 180
 /**
@@ -760,11 +753,7 @@ boolean executeOverPassQuery(URL queryUrl, def outputOSMFile) {
         timeout = (int) TimeUnit.MINUTES.toMillis(3);
     }
 
-    def user_agent = System.getProperty("OVERPASS_USER_AGENT")
-    if (!user_agent) {
-        user_agent = OSM_USER_AGENT
-    }
-    connection.setRequestProperty("User-Agent", user_agent)
+    connection.setRequestProperty("User-Agent", "GEOCLIMATE_${System.currentTimeMillis()}")
 
     connection.setConnectTimeout(timeout);
     connection.setReadTimeout(timeout);
@@ -826,11 +815,8 @@ boolean executeOverPassQuery(def query, def outputOSMFile) {
     } else {
         timeout = (int) TimeUnit.MINUTES.toMillis(3);
     }
-    def user_agent = System.getProperty("OVERPASS_USER_AGENT")
-    if (!user_agent) {
-        user_agent = OSM_USER_AGENT
-    }
-    connection.setRequestProperty("User-Agent", user_agent)
+    connection.setRequestProperty("User-Agent", "GEOCLIMATE_${System.currentTimeMillis()}")
+
     connection.setConnectTimeout(timeout)
     connection.setReadTimeout(timeout)
 
diff --git a/osmtools/src/test/groovy/org/orbisgis/geoclimate/osmtools/utils/UtilitiesTest.groovy b/osmtools/src/test/groovy/org/orbisgis/geoclimate/osmtools/utils/UtilitiesTest.groovy
index 9283647425..15b6e06e92 100644
--- a/osmtools/src/test/groovy/org/orbisgis/geoclimate/osmtools/utils/UtilitiesTest.groovy
+++ b/osmtools/src/test/groovy/org/orbisgis/geoclimate/osmtools/utils/UtilitiesTest.groovy
@@ -548,12 +548,12 @@ class UtilitiesTest extends AbstractOSMToolsTest {
     @Disabled
     void getNominatimDataTest() {
         def pattern = Pattern.compile("^POLYGON \\(\\((?>-?\\d+(?>\\.\\d+)? -?\\d+(?>\\.\\d+)?(?>, )?)*\\)\\)\$")
-        def data = Utilities.getNominatimData("Paimpol")
+        def data = OSMTools.Utilities.getNominatimData("Paimpol")
         assertTrue pattern.matcher(data["geom"].toString()).matches()
         Envelope env = data["geom"].getEnvelopeInternal()
         assertEquals([env.getMinY(), env.getMinX(), env.getMaxY(), env.getMaxX()].toString(), data["bbox"].toString())
         assertEquals(data["extratags"]["ref:INSEE"], "22162")
-        data = Utilities.getNominatimData("Boston")
+        data = OSMTools.Utilities.getNominatimData("Boston")
         assertTrue pattern.matcher(data["geom"].toString()).matches()
         assertEquals(data["extratags"]["population"], "689326")
     }