diff --git a/Makefile b/Makefile
index dc47908..f812afe 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 .PHONY: test matlab_pkg
 
-MATLAB_PKG_DIR=doctest-0.3.0
+MATLAB_PKG_DIR=doctest-matlab-0.3.0
 
 SHELL = '/bin/bash'