diff --git a/src/libraries/Microsoft.Extensions.Hosting.Systemd/src/SystemdHelpers.cs b/src/libraries/Microsoft.Extensions.Hosting.Systemd/src/SystemdHelpers.cs
index f14fb7a69588b..c7887bc29b230 100644
--- a/src/libraries/Microsoft.Extensions.Hosting.Systemd/src/SystemdHelpers.cs
+++ b/src/libraries/Microsoft.Extensions.Hosting.Systemd/src/SystemdHelpers.cs
@@ -14,9 +14,9 @@ namespace Microsoft.Extensions.Hosting.Systemd
     /// <summary>
     /// Helper methods for systemd Services.
     /// </summary>
-    public static partial class SystemdHelpers
+    public static class SystemdHelpers
     {
-        private static bool? _isSystemdService;
+        private static readonly bool _isSystemdService = GetIsSystemdService();
 
         /// <summary>
         /// Check if the current process is hosted as a systemd Service.
@@ -24,8 +24,7 @@ public static partial class SystemdHelpers
         /// <returns>
         /// <see langword="true" /> if the current process is hosted as a systemd Service; otherwise, <see langword="false" />.
         /// </returns>
-        public static bool IsSystemdService()
-            => _isSystemdService ??= GetIsSystemdService();
+        public static bool IsSystemdService() => _isSystemdService;
 
         private static bool GetIsSystemdService()
         {