diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index be70c22332..bbd3cd0a7d 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -1804,8 +1804,6 @@ qemuBuildDriveStr(virDomainDiskDefPtr disk,
     if (disk->cachemode) {
         virBufferAsprintf(&opt, ",cache=%s",
                           qemuDiskCacheV2TypeToString(disk->cachemode));
-    } else if (disk->src->shared && !disk->src->readonly) {
-        virBufferAddLit(&opt, ",cache=none");
     }
 
     if (disk->copy_on_read) {
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 827df4a5cc..9d1c33b54a 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -11891,11 +11891,22 @@ qemuDomainPrepareDiskSourceChain(virDomainDiskDefPtr disk,
 }
 
 
+static void
+qemuDomainPrepareDiskCachemode(virDomainDiskDefPtr disk)
+{
+    if (disk->cachemode == VIR_DOMAIN_DISK_CACHE_DEFAULT &&
+        disk->src->shared && !disk->src->readonly)
+        disk->cachemode = VIR_DOMAIN_DISK_CACHE_DISABLE;
+}
+
+
 int
 qemuDomainPrepareDiskSource(virDomainDiskDefPtr disk,
                             qemuDomainObjPrivatePtr priv,
                             virQEMUDriverConfigPtr cfg)
 {
+    qemuDomainPrepareDiskCachemode(disk);
+
     if (qemuDomainPrepareDiskSourceTLS(disk->src, cfg) < 0)
         return -1;
 
diff --git a/tests/qemuxml2startupxmloutdata/disk-drive-shared.xml b/tests/qemuxml2startupxmloutdata/disk-drive-shared.xml
index f4d2871ae7..60b7eca788 100644
--- a/tests/qemuxml2startupxmloutdata/disk-drive-shared.xml
+++ b/tests/qemuxml2startupxmloutdata/disk-drive-shared.xml
@@ -15,7 +15,7 @@
   <devices>
     <emulator>/usr/bin/qemu-system-i686</emulator>
     <disk type='block' device='disk'>
-      <driver name='qemu' type='raw'/>
+      <driver name='qemu' type='raw' cache='none'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='hda' bus='ide'/>
       <shareable/>