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-rw-r--r--innobase/ut/ut0ut.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/innobase/ut/ut0ut.c b/innobase/ut/ut0ut.c
index 18722149a8f..2a2db9442b3 100644
--- a/innobase/ut/ut0ut.c
+++ b/innobase/ut/ut0ut.c
@@ -428,7 +428,7 @@ ut_copy_file(
len < (long) sizeof buf ? (size_t) len : sizeof buf;
size_t size = fread(buf, 1, maxs, src);
fwrite(buf, 1, size, dest);
- len -= size;
+ len -= (long) size;
if (size < maxs) {
break;
}