diff --git a/src/graph/generation/sampler.hh b/src/graph/generation/sampler.hh
index bc7362cc6f2c8c18dde1c05fbf76e1ed7789206a..edcb8b512d130f86066990f01b02a32cfee349f9 100644
--- a/src/graph/generation/sampler.hh
+++ b/src/graph/generation/sampler.hh
@@ -127,7 +127,6 @@ private:
     vector<size_t> _alias;
     uniform_int_distribution<size_t> _sample;
     double _S;
-    size_t _size;
 };
 
 // uniform sampling from containers