diff --git a/eo/src/utils/eoRNG.h b/eo/src/utils/eoRNG.h
index d2a44a0e..8dbb4321 100644
--- a/eo/src/utils/eoRNG.h
+++ b/eo/src/utils/eoRNG.h
@@ -276,7 +276,7 @@ public :
     @return Uniformly chosen element from the vector.
     */
     template <typename TYPE>
-    const TYPE& choice(const std::vector<TYPE>& vec) const
+    const TYPE& choice(const std::vector<TYPE>& vec) 
         { return vec[random(vec.size())]; }