diff --git a/package_azureboard_index.json b/package_azureboard_index.json
index 470a956..e3c3aec 100644
--- a/package_azureboard_index.json
+++ b/package_azureboard_index.json
@@ -200,7 +200,7 @@
           "url": "https://azureboard.azureedge.net/prod/arduinopackage/AZ3166-1.2.1.zip",
           "archiveFileName": "AZ3166-1.2.1.zip",
           "checksum": "MD5:c7814efcc7c4d61a5a3b801809265bbb",
-          "size": "3788484 ",
+          "size": "3788484",
           "boards": [
             {
               "name": "MXChip - Microsoft Azure IoT Developer Kit AZ3166"