diff --git a/scripts/prepare_adhoc_build.js b/scripts/prepare_adhoc_build.js
index 9fa4b75c05..dfac364bcb 100644
--- a/scripts/prepare_adhoc_build.js
+++ b/scripts/prepare_adhoc_build.js
@@ -53,7 +53,7 @@ const ADHOC_NAME = `signal-desktop-adhoc-${formattedDate}-${shortSha}`;
 
 const PRODUCT_NAME_PATH = 'productName';
 const PRODUCTION_PRODUCT_NAME = 'Signal';
-const ADHOC_PRODUCT_NAME = `Signal AdHoc ${formattedDate} ${shortSha}`;
+const ADHOC_PRODUCT_NAME = `Signal Adhoc ${formattedDate}.${shortSha}`;
 
 const APP_ID_PATH = 'build.appId';
 const PRODUCTION_APP_ID = 'org.whispersystems.signal-desktop';
@@ -61,7 +61,7 @@ const ADHOC_APP_ID = `org.whispersystems.signal-desktop-adhoc-${formattedDate}-$
 
 const STARTUP_WM_CLASS_PATH = 'build.linux.desktop.StartupWMClass';
 const PRODUCTION_STARTUP_WM_CLASS = 'Signal';
-const ADHOC_STARTUP_WM_CLASS = `Signal AdHoc ${formattedDate} ${shortSha}`;
+const ADHOC_STARTUP_WM_CLASS = `Signal Adhoc ${formattedDate}.${shortSha}`;
 
 const DESKTOP_NAME_PATH = 'desktopName';