diff --git a/Tools/freeze/makemakefile.py b/Tools/freeze/makemakefile.py
index 5418f939a83..df10a4622dc 100644
--- a/Tools/freeze/makemakefile.py
+++ b/Tools/freeze/makemakefile.py
@@ -4,24 +4,30 @@
 import string
 
 def makemakefile(outfp, makevars, files, target):
-	outfp.write("# Makefile generated by freeze.py script\n\n")
+    outfp.write("# Makefile generated by freeze.py script\n\n")
 
-	keys = makevars.keys()
-	keys.sort()
-	for key in keys:
-		outfp.write("%s=%s\n" % (key, makevars[key]))
-	outfp.write("\nall: %s\n" % target)
+    keys = makevars.keys()
+    keys.sort()
+    for key in keys:
+        outfp.write("%s=%s\n" % (key, makevars[key]))
+    outfp.write("\nall: %s\n\n" % target)
 
-	deps = []
-	for i in range(len(files)):
-		file = files[i]
-		if file[-2:] == '.c':
-			base = os.path.basename(file)
-			dest = base[:-2] + '.o'
-			outfp.write("%s: %s\n" % (dest, file))
-			outfp.write("\t$(CC) $(CFLAGS) -c %s\n" % file)
-			files[i] = dest
-			deps.append(dest)
+    deps = []
+    for i in range(len(files)):
+        file = files[i]
+        if file[-2:] == '.c':
+            base = os.path.basename(file)
+            dest = base[:-2] + '.o'
+            outfp.write("%s: %s\n" % (dest, file))
+            outfp.write("\t$(CC) $(CFLAGS) -c %s\n" % file)
+            files[i] = dest
+            deps.append(dest)
 
-	outfp.write("\n%s: %s\n" % (target, string.join(deps)))
-	outfp.write("\t$(CC) %s -o %s\n" % (string.join(files), target))
+    outfp.write("\n%s: %s\n" % (target, string.join(deps)))
+    outfp.write("\t$(CC) %s -o %s\n" % (string.join(files), target))
+
+    outfp.write("\nclean:\n\t-rm -f *.o %s\n" % target)
+
+# Local Variables:
+# indent-tabs-mode: nil
+# End: