In this work, two di↵erent aspects of the CL&Pol force field are refined for the ChCl:LA system. The first of them, the parameter of the three strongest H-bond interactions are tuned based on AIMD 1:1 simulations. This parameterization is highly system-dependant, and a↵ects significantly the accuracy of the force field in capturing the short-range structure of the DES. In particular, focusing on the main interactions in the system, the original force field overestimates the Cl -ChOH interaction and underestimates Cl -LA interactions, particularly Cl -LAOH, as compared to AIMD. The agreement is optimized by tuning the value to fit the AIMD data, obtaining large agreement between both levels of theory. Furthermore, it is observed that as a consequence, the improvement is extended to the whole Hbond network, optimizing the overall agreement with AIMD without falling in the overparameterization.