diff --git a/examples/sentinel-1-grd-s4.json b/examples/sentinel-1-grd-s4.json
index 515cd08..9d1e167 100644
--- a/examples/sentinel-1-grd-s4.json
+++ b/examples/sentinel-1-grd-s4.json
@@ -54,7 +54,7 @@
     "processing:facility": "Production Service-SERCO",
     "processing:version": "003.71",
     "constellation": "sentinel-1",
-    "Instruments": [
+    "instruments": [
       "SAR"
     ],
     "sat:relative_orbit": 140,
@@ -104,4 +104,4 @@
       "type": "application/json"
     }
   ]
-}
\ No newline at end of file
+}