diff --git a/reactos/ntoskrnl/se/sd.c b/reactos/ntoskrnl/se/sd.c
index b75c18afe54..c82cc51ae9d 100644
--- a/reactos/ntoskrnl/se/sd.c
+++ b/reactos/ntoskrnl/se/sd.c
@@ -882,12 +882,13 @@ SeSetSecurityDescriptorInfo(IN PVOID Object OPTIONAL,
     SECURITY_INFORMATION SecurityInformation;
 
     ObjectSd = *ObjectsSecurityDescriptor;
-    ASSERT(ObjectSd->Control & SE_SELF_RELATIVE);
 
     /* The object does not have a security descriptor. */
     if (!ObjectSd)
         return STATUS_NO_SECURITY_ON_OBJECT;
 
+    ASSERT(ObjectSd->Control & SE_SELF_RELATIVE);
+
     SecurityInformation = *_SecurityInformation;
 
     /* Get owner and owner size */