diff --git a/src/propeller/problems/float_regression.cljc b/src/propeller/problems/float_regression.cljc
index f7c8ca4..516e682 100644
--- a/src/propeller/problems/float_regression.cljc
+++ b/src/propeller/problems/float_regression.cljc
@@ -75,7 +75,7 @@
        :parent-selection         :lexicase
        :tournament-size          5
        :umad-rate                0.1
-       :solution-error-treshold  0.5
+       :solution-error-threshold  0.5
        :variation                {:umad 1.0 :crossover 0.0}
        :elitism                  false}
       (apply hash-map (map #(if (string? %) (read-string %) %) args))))