diff --git a/virtManager/addhardware.py b/virtManager/addhardware.py
index 25146ce05..bb17754b2 100644
--- a/virtManager/addhardware.py
+++ b/virtManager/addhardware.py
@@ -1362,10 +1362,12 @@ class vmmAddHardware(vmmGObjectUI):
                 return False
 
         # Disk collision
-        if disk.is_conflict_disk(conn):
-            res = self.err.yes_no(_('Disk "%s" is already in use by another '
-                                    'guest!' % disk.path),
-                                  _("Do you really want to use the disk?"))
+        names = disk.is_conflict_disk(conn)
+        if names:
+            res = self.err.yes_no(
+                    _('Disk "%s" is already in use by other guests %s') %
+                     (disk.path, names),
+                    _("Do you really want to use the disk?"))
             if not res:
                 return False
 
diff --git a/virtManager/create.py b/virtManager/create.py
index 7c4d626f0..d5fd50d0b 100644
--- a/virtManager/create.py
+++ b/virtManager/create.py
@@ -1717,12 +1717,15 @@ class vmmCreate(vmmGObjectUI):
                 return False
 
         # Disk collision
-        if not oldguest and disk.is_conflict_disk(self.guest.conn):
-            res = self.err.yes_no(_('Disk "%s" is already in use by another '
-                                    'guest!' % disk.path),
-                                  _("Do you really want to use the disk?"))
-            if not res:
-                return False
+        if not oldguest:
+            names = disk.is_conflict_disk(self.guest.conn)
+            if names:
+                res = self.err.yes_no(
+                        _('Disk "%s" is already in use by other guests %s') %
+                         (disk.path, names),
+                        _("Do you really want to use the disk?"))
+                if not res:
+                    return False
 
         if not oldguest:
             uihelpers.check_path_search_for_qemu(self.topwin,
diff --git a/virtinst/VirtualDisk.py b/virtinst/VirtualDisk.py
index 32cb79eaf..749840a2a 100644
--- a/virtinst/VirtualDisk.py
+++ b/virtinst/VirtualDisk.py
@@ -1554,20 +1554,13 @@ class VirtualDisk(VirtualDevice):
                         ((need / (1024 * 1024)), (avail / (1024 * 1024))))
         return (ret, msg)
 
-    def is_conflict_disk(self, conn, return_names=False):
+    def is_conflict_disk(self, conn):
         """
         check if specified storage is in use by any other VMs on passed
         connection.
 
-        @param conn: connection to check for collisions on
-        @type conn: libvirt.virConnect
-        @param return_names: Whether or not to return a list of VM names using
-                             the same storage (default = False)
-        @type return_names: C{bool}
-
-        @return: True if a collision, False otherwise (list of names if
-                 return_names passed)
-        @rtype: C{bool}
+        @return: list of colliding VM names
+        @rtype: C{list}
         """
         if self.vol_object:
             path = self.vol_object.path()
@@ -1581,15 +1574,8 @@ class VirtualDisk(VirtualDevice):
             conn = self.conn
 
         check_conflict = self.shareable
-        names = self.path_in_use_by(conn, path,
-                                    check_conflict=check_conflict)
-
-        ret = False
-        if names:
-            ret = True
-        if return_names:
-            ret = names
-
+        ret = self.path_in_use_by(conn, path,
+                                  check_conflict=check_conflict)
         return ret
 
 
diff --git a/virtinst/cli.py b/virtinst/cli.py
index b24f87e4c..a3eeef072 100644
--- a/virtinst/cli.py
+++ b/virtinst/cli.py
@@ -534,11 +534,12 @@ def disk_prompt(conn, origpath, origsize, origsparse,
         """
         Check if disk is inuse by another guest
         """
-        msg = (_("Disk %s is already in use by another guest" % dev.path))
-
-        if not dev.is_conflict_disk(conn):
+        names = dev.is_conflict_disk(conn)
+        if not names:
             return False
 
+        msg = (_("Disk %s is already in use by other guests %s." %
+               (dev.path, names)))
         return not prompt_for_yes_or_no(msg, askmsg)
 
     def prompt_size_conflict(dev):