1 files changed, 3 insertions, 2 deletions
diff --git a/tool/transform_mjit_header.rb b/tool/transform_mjit_header.rb
index c5ddae93c9..c27f9ea8f6 100644
--- a/tool/transform_mjit_header.rb
+++ b/tool/transform_mjit_header.rb
@@ -80,9 +80,10 @@ module MJITHeader
     Tempfile.open(['', '.c'], mode: File::BINARY) do |f|
       f.puts code
       f.close
-      unless system("#{cc} #{cflags} #{f.path}", err: File::NULL)
+      cmd = "#{cc} #{cflags} #{f.path}"
+      unless system(cmd, err: File::NULL)
         STDERR.puts "error in #{stage} header file:"
-        system("#{cc} #{cflags} #{f.path}")
+        system(cmd)
         exit false
       end
     end