diff --git a/run.py b/run.py
index c99be7e..8cef4ad 100755
--- a/run.py
+++ b/run.py
@@ -43,7 +43,7 @@ def blockdevice(termsize, settings):
 
 
 def checks(termsize, settings):
-	for check in os.listdir("checks/").sort:
+	for check in sorted(os.listdir("checks/")):
 		if check[-6:] == ".check":
 			# Run loop
 			run = True
@@ -71,7 +71,7 @@ def checks(termsize, settings):
 
 
 def steps(termsize, settings):
-	for step in os.listdir("steps/").sort:
+	for step in sorted(os.listdir("steps/")):
 		if step[-5:] == ".step":
 			# Run loop
 			run = True
@@ -99,7 +99,7 @@ def steps(termsize, settings):
 
 
 def flavours(termsize, settings):
-	for flavour in os.listdir("flavours/").sort:
+	for flavour in sorted(os.listdir("flavours/")):
 		if flavour[-8:] == ".flavour":
 			# Run loop
 			if _ask("Do you want to run flavour %s?" % (flavour), [ "yes", "no" ]) == "no":