diff --git a/how_to_design_programs/test b/how_to_design_programs/test
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Binary files /dev/null and b/how_to_design_programs/test differ
diff --git a/how_to_design_programs/test.scm b/how_to_design_programs/test.scm
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--- a/how_to_design_programs/test.scm
+++ b/how_to_design_programs/test.scm
@@ -1,2 +1,3 @@
-#lang scheme
+;; A prgram to test scheme language features
 
+(display "Hello Word!")