diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c
index c9b6187fc724e5e5222d0750a0033ea6187def64..770c00bbb3a45150b98f6811e827746608faee56 100644
--- a/src/util/virstoragefile.c
+++ b/src/util/virstoragefile.c
@@ -848,7 +848,8 @@ virStorageFileGetMetadataInternal(virStorageSourcePtr meta,
 
         crypt_format = virReadBufInt32BE(buf +
                                          fileTypeInfo[meta->format].qcowCryptOffset);
-        if (crypt_format && VIR_ALLOC(meta->encryption) < 0)
+        if (crypt_format && !meta->encryption &&
+            VIR_ALLOC(meta->encryption) < 0)
             goto cleanup;
     }