diff --git a/Rakefile.rb b/Rakefile.rb
index bcf8c0d..bd8f3ae 100644
--- a/Rakefile.rb
+++ b/Rakefile.rb
@@ -1,9 +1,10 @@
 require 'hoe'
 
-$LOAD_PATH.unshift("./lib")
 $LOAD_PATH.unshift("./ext")
 
-hoe = Hoe.new("igraph",'0.1.1') do |p|
+require 'igraph'
+
+hoe = Hoe.new("igraph",IGraph::VERSION) do |p|
   
   p.author = "Alex Gutteridge"
   p.email = "alexg@kuicr.kyoto-u.ac.jp"
diff --git a/ext/cIGraph.c b/ext/cIGraph.c
index 93dfe80..c0efbaa 100644
--- a/ext/cIGraph.c
+++ b/ext/cIGraph.c
@@ -158,6 +158,8 @@ void Init_igraph(){
 
   rb_include_module(cIGraph, rb_mEnumerable);
 
+  rb_define_const(cIGraph, "VERSION", rb_str_new2("0.3"));
+
   rb_define_const(cIGraph, "EDGEORDER_ID",   INT2NUM(1));
   rb_define_const(cIGraph, "EDGEORDER_FROM", INT2NUM(2));
   rb_define_const(cIGraph, "EDGEORDER_TO",   INT2NUM(3));