diff --git a/index.js b/index.js
index 86955fc..df0f6cd 100644
--- a/index.js
+++ b/index.js
@@ -103,7 +103,7 @@ function checkMetar() {
                         items.push(newMetar(metars[i]));
                 }
                 
-                let outputPath = METAR_SERVICE + "/" + icao;
+                let outputPath = path.join(METAR_SERVICE, icao);
                 writeFeed(generateFeed(METAR_SERVICE, icao, items, outputPath), outputPath);
             }
         });