diff --git a/eo/test/binary_value.h b/eo/test/binary_value.h
index e3a0c756e..e36ad50c7 100644
--- a/eo/test/binary_value.h
+++ b/eo/test/binary_value.h
@@ -2,14 +2,12 @@
 
 //-----------------------------------------------------------------------------
 
-typedef eoBin<float> Chrom;
-
 /** Just a simple function that takes binary value of a chromosome and sets
     the fitnes.
     @param _chrom A binary chromosome 
 */
 
-float binary_value(const Chrom& _chrom)
+template <class Chrom> float binary_value(const Chrom& _chrom)
 {
   float sum = 0;
   for (unsigned i = 0; i < _chrom.size(); i++)