diff --git a/assignment4-starter/assignment4-starter/collaboration.txt b/assignment4-starter/collaboration.txt
similarity index 100%
rename from assignment4-starter/assignment4-starter/collaboration.txt
rename to assignment4-starter/collaboration.txt
diff --git a/assignment4-starter/assignment4-starter/main.scm b/assignment4-starter/main.scm
similarity index 100%
rename from assignment4-starter/assignment4-starter/main.scm
rename to assignment4-starter/main.scm
diff --git a/assignment4-starter/assignment4-starter/scheme b/assignment4-starter/scheme
old mode 100644
new mode 100755
similarity index 100%
rename from assignment4-starter/assignment4-starter/scheme
rename to assignment4-starter/scheme
diff --git a/assignment4-starter/assignment4-starter/test-m b/assignment4-starter/test-m
old mode 100644
new mode 100755
similarity index 100%
rename from assignment4-starter/assignment4-starter/test-m
rename to assignment4-starter/test-m
diff --git a/assignment4-starter/assignment4-starter/tester-script.scm b/assignment4-starter/tester-script.scm
similarity index 100%
rename from assignment4-starter/assignment4-starter/tester-script.scm
rename to assignment4-starter/tester-script.scm
diff --git a/assignment4-starter/assignment4-starter/tests-m.scm b/assignment4-starter/tests-m.scm
similarity index 100%
rename from assignment4-starter/assignment4-starter/tests-m.scm
rename to assignment4-starter/tests-m.scm