diff --git a/README.md b/README.md
index 82bd1db..4230559 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # A minimalist calculator for fermi estimation
 
-This project is a minimalist, stack-based DSL for fermi estimation. It can multiply, divide, add and substract scalars, lognormals and beta distributions.
+This project is a minimalist, calculator-style DSL for fermi estimation. It can multiply, divide, add and substract scalars, lognormals and beta distributions.
 
 ## Motivation
 
diff --git a/makefile b/makefile
index 12e722e..331548c 100644
--- a/makefile
+++ b/makefile
@@ -9,3 +9,9 @@ install: f
 	rm /usr/bin/f
 	sudo mv f /usr/bin/f
 	sudo ln -s /usr/bin/f /usr/bin/fermi
+
+install_xl: f 
+	rm /usr/bin/fermixl
+	rm /usr/bin/fxl
+	sudo mv f /usr/bin/fxl
+	sudo ln -s /usr/bin/fxl /usr/bin/fermixl