diff --git a/reactos/include/ndk/rtlfuncs.h b/reactos/include/ndk/rtlfuncs.h
index 3822cc21bde..f8e197ef914 100644
--- a/reactos/include/ndk/rtlfuncs.h
+++ b/reactos/include/ndk/rtlfuncs.h
@@ -2230,7 +2230,7 @@ RtlResetRtlTranslations(IN PNLSTABLEINFO NlsTable);
 static __inline
 LARGE_INTEGER
 NTAPI_INLINE
-RtlConvertLongToLargeIntegerf(
+RtlConvertLongToLargeInteger(
     LONG SignedInteger
 )
 {