diff --git a/tools/virt-resize b/tools/virt-resize
index 8a473ca3f..2d8e0f14b 100755
--- a/tools/virt-resize
+++ b/tools/virt-resize
@@ -1394,7 +1394,7 @@ sub canonicalize
 {
     local $_ = shift;
 
-    if (m{^/dev/[hv]d([a-z]\d)$}) {
+    if (m{^/dev/[hv]d([a-z]\d*)$}) {
         return "/dev/sd$1";
     }
     $_;