diff --git a/reactos/ntoskrnl/ntoskrnl.spec b/reactos/ntoskrnl/ntoskrnl.spec
index 5c279d623cd..4deabb933e7 100644
--- a/reactos/ntoskrnl/ntoskrnl.spec
+++ b/reactos/ntoskrnl/ntoskrnl.spec
@@ -899,7 +899,7 @@
 @ stdcall ObCloseHandle(ptr long)
 @ stdcall ObCreateObject(long ptr ptr long ptr long long long ptr)
 @ stdcall ObCreateObjectType(ptr ptr ptr ptr)
-;ObDeleteCapturedInsertInfo
+@ stdcall ObDeleteCapturedInsertInfo(ptr)
 @ stdcall ObDereferenceObject(ptr)
 @ stdcall -arch=i386,arm ObDereferenceObjectDeferDelete(ptr)
 @ stdcall ObDereferenceSecurityDescriptor(ptr long)
@@ -918,7 +918,7 @@
 @ stdcall ObReferenceObjectByPointer(ptr long ptr long)
 @ stdcall ObReferenceSecurityDescriptor(ptr long)
 @ stdcall ObReleaseObjectSecurity(ptr long)
-;ObSetHandleAttributes@12
+@ stdcall ObSetHandleAttributes(ptr ptr long)
 @ stdcall ObSetSecurityDescriptorInfo(ptr ptr ptr ptr long ptr)
 @ stdcall ObSetSecurityObjectByPointer(ptr long ptr)
 @ fastcall ObfDereferenceObject(ptr)
diff --git a/reactos/ntoskrnl/ob/obhandle.c b/reactos/ntoskrnl/ob/obhandle.c
index b6f091c98e3..37c79b6b510 100644
--- a/reactos/ntoskrnl/ob/obhandle.c
+++ b/reactos/ntoskrnl/ob/obhandle.c
@@ -3171,6 +3171,36 @@ ObInsertObject(IN PVOID Object,
     return RealStatus;
 }
 
+/*++
+* @name ObSetHandleAttributes
+* @implemented NT5.1
+*
+*     The ObSetHandleAttributes routine <FILLMEIN>
+*
+* @param Handle
+*        <FILLMEIN>.
+*
+* @param HandleFlags
+*        <FILLMEIN>.
+*
+* @param PreviousMode
+*        <FILLMEIN>.
+*
+* @return <FILLMEIN>.
+*
+* @remarks None.
+*
+*--*/
+NTSTATUS
+NTAPI
+ObSetHandleAttributes(IN HANDLE Handle,
+                      IN POBJECT_HANDLE_ATTRIBUTE_INFORMATION HandleFlags,
+                      IN KPROCESSOR_MODE PreviousMode)
+{
+    UNIMPLEMENTED;
+    return STATUS_NOT_IMPLEMENTED;
+}
+
 /*++
 * @name ObCloseHandle
 * @implemented NT5.1
diff --git a/reactos/ntoskrnl/ob/oblife.c b/reactos/ntoskrnl/ob/oblife.c
index 636130bca2d..74a640b7bab 100644
--- a/reactos/ntoskrnl/ob/oblife.c
+++ b/reactos/ntoskrnl/ob/oblife.c
@@ -1269,6 +1269,14 @@ ObCreateObjectType(IN PUNICODE_STRING TypeName,
     return STATUS_INSUFFICIENT_RESOURCES;
 }
 
+VOID
+NTAPI
+ObDeleteCapturedInsertInfo(IN PVOID Object)
+{
+    UNIMPLEMENTED;
+    return;
+}
+
 VOID
 NTAPI
 ObpDeleteObjectType(IN PVOID Object)