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-rw-r--r--lib/dtas/source/sox.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/dtas/source/sox.rb b/lib/dtas/source/sox.rb
index 235cbbc..086b923 100644
--- a/lib/dtas/source/sox.rb
+++ b/lib/dtas/source/sox.rb
@@ -77,7 +77,7 @@ class DTAS::Source::Sox # :nodoc:
         end
       rescue => e
         if /FAIL formats: no handler for file extension/ =~ err
-          warn("#{xs(cmd)}: #{err}")
+          warn("#{Shellwords.escape(cmd)}: #{err}")
         else
           warn("#{e.message} (#{e.class})")
         end