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-rw-r--r--mysys/mf_iocache.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mysys/mf_iocache.c b/mysys/mf_iocache.c
index 4591557baf0..28e5e72130d 100644
--- a/mysys/mf_iocache.c
+++ b/mysys/mf_iocache.c
@@ -265,7 +265,7 @@ int init_io_cache(IO_CACHE *info, File file, size_t cachesize,
if (type == SEQ_READ_APPEND)
buffer_block *= 2;
else if (cache_myflags & MY_ENCRYPT)
- buffer_block= 2*my_aes_get_size(buffer_block) + sizeof(IO_CACHE_CRYPT);
+ buffer_block= 2*(buffer_block + MY_AES_BLOCK_SIZE) + sizeof(IO_CACHE_CRYPT);
if (cachesize == min_cache)
flags|= (myf) MY_WME;