diff --git a/misc-scripts/xref_mapping/XrefParser/BaseParser.pm b/misc-scripts/xref_mapping/XrefParser/BaseParser.pm
index ce2dcbaaf70b969b52d50af0c09fefa05ad7dde3..1a250b33c3774594fe7cd0cf948e0bcc4afbac07 100644
--- a/misc-scripts/xref_mapping/XrefParser/BaseParser.pm
+++ b/misc-scripts/xref_mapping/XrefParser/BaseParser.pm
@@ -106,7 +106,7 @@ sub run {
 	# TODO - read .gz file directly? open (FILE, "zcat $file|") or Compress::Zlib
 	if ($file =~ /(.*)\.gz$/) {
 	  print "Uncompressing $dir/$file\n";
-	  system("gunzip -f ", "$dir/$file");
+	  system("gunzip -f $dir/$file");
 	  $file = $1;
 	}