diff --git a/static/firmware_build/manifest.json b/static/firmware_build/manifest.json
index 246ab3a3..c8e3955f 100644
--- a/static/firmware_build/manifest.json
+++ b/static/firmware_build/manifest.json
@@ -6,7 +6,7 @@
       "chipFamily": "ESP32",
       "parts": [
         {
-          "path": "AtomVM-esp32-v0.6.0-alpha.1",
+          "path": "AtomVM-esp32-v0.6.0-alpha.1.img",
           "offset": 4096
         }
       ]