diff --git a/rostests/apitests/win32kdll/win32kdll_2k3sp2/win32kdll_2k3sp2.spec b/rostests/apitests/win32kdll/win32kdll_2k3sp2/win32kdll_2k3sp2.spec
index 1752cb63049..d09cec87675 100644
--- a/rostests/apitests/win32kdll/win32kdll_2k3sp2/win32kdll_2k3sp2.spec
+++ b/rostests/apitests/win32kdll/win32kdll_2k3sp2/win32kdll_2k3sp2.spec
@@ -390,7 +390,8 @@
 @ stdcall NtUserGetAtomName(long ptr)
 @ stdcall NtUserGetCaretBlinkTime()
 @ stdcall NtUserGetCaretPos(ptr)
-@ stdcall NtUserGetClassInfo(ptr ptr ptr ptr long) # called NtUserGetClassInfoEx on 2k3,but identical to XP
+@ stdcall NtUserGetClassInfo(ptr ptr ptr ptr long) NtUserGetClassInfoEx # called NtUserGetClassInfoEx on 2k3, but identical to XP's NtUserGetClassInfo
+@ stdcall NtUserGetClassInfoEx(ptr ptr ptr ptr long)
 @ stdcall NtUserGetClassName(ptr long ptr)
 @ stdcall NtUserGetClipboardData(long ptr)
 @ stdcall NtUserGetClipboardFormatName(long wstr ptr)
diff --git a/rostests/apitests/win32kdll/win32kdll_2k3sp2/win32ksvc-2k3sp2.h b/rostests/apitests/win32kdll/win32kdll_2k3sp2/win32ksvc-2k3sp2.h
index faad0df54af..1e3f1ca85ed 100644
--- a/rostests/apitests/win32kdll/win32kdll_2k3sp2/win32ksvc-2k3sp2.h
+++ b/rostests/apitests/win32kdll/win32kdll_2k3sp2/win32ksvc-2k3sp2.h
@@ -388,7 +388,7 @@ SVC_(UserGetAsyncKeyState, 1)
 SVC_(UserGetAtomName, 2)
 SVC_(UserGetCaretBlinkTime, 0)
 SVC_(UserGetCaretPos, 1)
-SVC_(UserGetClassInfo, 5) // called UserGetClassInfoEx on 2k3, but identical to XP
+SVC_(UserGetClassInfoEx, 5)
 SVC_(UserGetClassName, 3)
 SVC_(UserGetClipboardData, 2)
 SVC_(UserGetClipboardFormatName, 3)