diff --git a/src/modules/Storage.rb b/src/modules/Storage.rb
index 9c51224bc..6fc7ae0e2 100644
--- a/src/modules/Storage.rb
+++ b/src/modules/Storage.rb
@@ -1366,9 +1366,9 @@ def volumeMap(vinfo, p)
       Ops.set(p, "size_k", vinfo.sizeK)
       fs = toSymbol(FileSystems.conv_fs, vinfo.fs)
       Ops.set(p, "used_fs", fs) if fs != :unknown
+      Ops.set(p, "format", true) if vinfo.format && fs != :unknown
       fs = toSymbol(FileSystems.conv_fs, vinfo.detected_fs)
       Ops.set(p, "detected_fs", fs)
-      Ops.set(p, "format", true) if vinfo.format && fs != :unknown
       Ops.set(p, "create", true) if vinfo.create
       tmp = vinfo.mount
       if !Builtins.isempty(tmp)