diff --git a/src/processors/drive/neural_utils/RNNAccelerated.cpp b/src/processors/drive/neural_utils/RNNAccelerated.cpp
index ff520063..70388642 100644
--- a/src/processors/drive/neural_utils/RNNAccelerated.cpp
+++ b/src/processors/drive/neural_utils/RNNAccelerated.cpp
@@ -24,7 +24,7 @@ struct RNNMathsProvider
     template <typename T>
     static T sigmoid (T x)
     {
-        return math_approx::sigmoid_exp<5, false> (x);
+        return math_approx::sigmoid_exp<5, true> (x);
     }
 };