diff --git a/dlls/advapi32/service.c b/dlls/advapi32/service.c
index cc6a36c28d5..60d0f8de827 100644
--- a/dlls/advapi32/service.c
+++ b/dlls/advapi32/service.c
@@ -359,6 +359,15 @@ static DWORD WINAPI service_thread(LPVOID arg)
         len += strlenW(&str[len]) + 1;
         argc++;
     }
+
+    if (!argc)
+    {
+        if (info->unicode)
+            info->proc.w(0, NULL);
+        else
+            info->proc.a(0, NULL);
+        return 0;
+    }
     
     if (info->unicode)
     {