If we're going to hide rebar from the user for make app we might as well use slightly better variable name.
diff --git a/Makefile b/Makefile
index 506b240..c0b6367 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 
 PREFIX:=../
-DEST:=$(PREFIX)$(APPID)
+DEST:=$(PREFIX)$(PROJECT)
 
 REBAR=./rebar
 
@@ -23,5 +23,5 @@
 	@$(REBAR) analyze
 
 app:
-	@$(REBAR) create template=mochiwebapp dest=$(DEST) appid=$(APPID)
+	@$(REBAR) create template=mochiwebapp dest=$(DEST) appid=$(PROJECT)
 
diff --git a/README b/README
index cefb110..e51a0d7 100644
--- a/README
+++ b/README
@@ -9,7 +9,7 @@
 occasionally for convenience.
 
 To create a new mochiweb using project:
-   make app APPID=project_name
+   make app PROJECT=project_name
 
 To create a new mochiweb using project in a specific directory:
-   make app APPID=project_name PREFIX=$HOME/projects/
+   make app PROJECT=project_name PREFIX=$HOME/projects/