diff --git a/src/NzbDrone.Update/UpdateEngine/InstallUpdateService.cs b/src/NzbDrone.Update/UpdateEngine/InstallUpdateService.cs
index 3175cb5fb..7b78093c6 100644
--- a/src/NzbDrone.Update/UpdateEngine/InstallUpdateService.cs
+++ b/src/NzbDrone.Update/UpdateEngine/InstallUpdateService.cs
@@ -125,10 +125,11 @@ namespace NzbDrone.Update.UpdateEngine
                     _logger.Info("Copying new files to target folder");
                     _diskTransferService.MirrorFolder(_appFolderInfo.GetUpdatePackageFolder(), installationFolder);
 
-                    // Set executable flag on Lidarr app
+                    // Set executable flag on Lidarr app and bundled fpcalc
                     if (OsInfo.IsOsx || (OsInfo.IsLinux && PlatformInfo.IsNetCore))
                     {
                         _diskProvider.SetFilePermissions(Path.Combine(installationFolder, "Lidarr"), "755", null);
+                        _diskProvider.SetFilePermissions(Path.Combine(installationFolder, "fpcalc"), "755", null);
                     }
                 }
                 catch (Exception e)