diff --git a/package.json b/package.json
index 0f4f9180..29db900f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "road2",
-  "version": "1.1.1",
+  "version": "1.1.2",
 
   "description": "Calcul d'itinéraire",
   "author": "RDEV - IGN",
diff --git a/src/js/sources/pgrSource.js b/src/js/sources/pgrSource.js
index c7a14dc8..08a7aae9 100644
--- a/src/js/sources/pgrSource.js
+++ b/src/js/sources/pgrSource.js
@@ -988,6 +988,11 @@ module.exports = class pgrSource extends Source {
 
       currentPgrRoute.geometry.coordinates = newRouteGeomCoords;
       routes[i].geometry = new Line(currentPgrRoute.geometry, "geojson", this._topology.projection);
+      if (!routes[i].geometry.transform(askedProjection)) {
+        throw errorManager.createError(" Error during reprojection of step's geometry in PGR response. ");
+      } else {
+        LOGGER.debug("step geometry is converted");
+      }
       routes[i].portions = portions;
 
     }