diff --git a/reactos/lib/rtl/rangelist.c b/reactos/lib/rtl/rangelist.c
index 1b8c7948dce..ab2de3e0369 100644
--- a/reactos/lib/rtl/rangelist.c
+++ b/reactos/lib/rtl/rangelist.c
@@ -165,7 +165,7 @@ RtlCopyRangeList(OUT PRTL_RANGE_LIST CopyRangeList,
 
         RtlCopyMemory(&NewEntry->Range,
                       &Current->Range,
-                      sizeof(RTL_RANGE_ENTRY));
+                      sizeof(RTL_RANGE));
 
         InsertTailList(&CopyRangeList->ListHead,
                        &NewEntry->Entry);