diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c
index 890ec69929..9347c7ab30 100644
--- a/src/util/virstoragefile.c
+++ b/src/util/virstoragefile.c
@@ -3551,8 +3551,28 @@ virStorageSourceParseBackingJSONRaw(virStorageSourcePtr src,
const char *jsonstr,
int opaque G_GNUC_UNUSED)
{
+ bool has_offset = virJSONValueObjectHasKey(json, "offset");
+ bool has_size = virJSONValueObjectHasKey(json, "size");
virJSONValuePtr file;
+ if (has_offset || has_size) {
+ src->sliceStorage = g_new0(virStorageSourceSlice, 1);
+
+ if (has_offset &&
+ virJSONValueObjectGetNumberUlong(json, "offset", &src->sliceStorage->offset) < 0) {
+ virReportError(VIR_ERR_INVALID_ARG, "%s",
+ _("malformed 'offset' property of 'raw' driver"));
+ return -1;
+ }
+
+ if (has_size &&
+ virJSONValueObjectGetNumberUlong(json, "size", &src->sliceStorage->size) < 0) {
+ virReportError(VIR_ERR_INVALID_ARG, "%s",
+ _("malformed 'size' property of 'raw' driver"));
+ return -1;
+ }
+ }
+
/* 'raw' is a format driver so it can have protocol driver children */
if (!(file = virJSONValueObjectGetObject(json, "file"))) {
virReportError(VIR_ERR_INVALID_ARG,
diff --git a/tests/virstoragetest.c b/tests/virstoragetest.c
index 25d41f0de4..39040bf4cb 100644
--- a/tests/virstoragetest.c
+++ b/tests/virstoragetest.c
@@ -1600,7 +1600,11 @@ mymain(void)
"\"filename\": \"/tmp/testfle\""
"}"
"}",
- "\n", 0);
+ "\n", 0);
#endif /* WITH_YAJL */