diff --git a/pymlac/Makefile b/pymlac/Makefile
index da5c955..06c1c6d 100644
--- a/pymlac/Makefile
+++ b/pymlac/Makefile
@@ -7,7 +7,7 @@ test:	test.ptr
 	python test_CPU.py CPU.test
 
 test.ptr:
-	make_ptr > test.ptr
+	./make_ptr > test.ptr
 
 %:	%.ptp
 	./pymlac -b ptr -ptr $< -r 040 -t 0100 -r 0100
diff --git a/pymlac/make_ptr b/pymlac/make_ptr
old mode 100644
new mode 100755
index 10f9b5f..95f43eb
--- a/pymlac/make_ptr
+++ b/pymlac/make_ptr
@@ -1,6 +1,8 @@
 #!/bin/bash
+
 #
 # Make a PTR test file
 # 3 bytes: 0 1 2
+#
 
 echo -n -e "\00\01\02"