diff --git a/ant/build.xml b/ant/build.xml
index c1ee7dc8..287437d0 100644
--- a/ant/build.xml
+++ b/ant/build.xml
@@ -390,10 +390,10 @@
-Rosenbrock's function within the co-domain -5 <= x <= 5.
+Rosenbrock's function within the domain -5 <= x <= 5.
The global optimum is located in a parabolic formed valley (among the curve x^2 = x_1^2), which has a flat ground.