diff --git a/cpp/full_code/ornstein_uhlenbeck_process.hpp b/cpp/full_code/ornstein_uhlenbeck_process.hpp
index f4e1e1916fe5dafdcf0a1ab02ed53f6ec2ded4bb..d122677b2e887e45a0061e88162f3dfdd5b97d38 100644
--- a/cpp/full_code/ornstein_uhlenbeck_process.hpp
+++ b/cpp/full_code/ornstein_uhlenbeck_process.hpp
@@ -54,7 +54,7 @@ class ornstein_uhlenbeck_process{
         {
             //return this->kolmogorov_constant*sqrt(this->kolmogorov_constant/
              //               this->ou_energy_amplitude);
-            return 10.*pow(kabs,2./3.)*this->kolmogorov_constant*sqrt(this->kolmogorov_constant/
+            return 1./10.*pow(kabs,2./3.)*this->kolmogorov_constant*sqrt(this->kolmogorov_constant/
                            this->ou_energy_amplitude); //TODO take out 10
         }