diff --git a/package.json b/package.json
index 561b3e1..f95d3d5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@watergis/geojson2inp",
-  "version": "0.1.2",
+  "version": "0.1.3",
   "description": "This module converts GeoJSON to EPANET INP file",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
diff --git a/src/inp/InpCurves.ts b/src/inp/InpCurves.ts
index a04da41..3a783d1 100644
--- a/src/inp/InpCurves.ts
+++ b/src/inp/InpCurves.ts
@@ -17,6 +17,7 @@ export default class InpPumps extends InpBase {
   }
 
   addContent(data: PumpCurve) {
+    if (!data)return;
     const contents = [
       pad(data.id, 16),
       pad(data.flow.toString(), 12),