diff --git a/app/modules/prover/index.ts b/app/modules/prover/index.ts
index 624f456d4403d072bba1e82e1391dd30ef525bc0..856e1423761bde02af8b9da064ffb307c0b65d18 100644
--- a/app/modules/prover/index.ts
+++ b/app/modules/prover/index.ts
@@ -22,7 +22,7 @@ export const ProverDependency = {
           conf.cpu = ProverConstants.DEFAULT_CPU;
         }
         if (conf.nbCores === null || conf.nbCores === undefined) {
-          conf.nbCores = Math.min(Constants.CORES_MAXIMUM_USE_IN_PARALLEL, require('os').cpus().length)
+          conf.nbCores = Math.min(ProverConstants.CORES_MAXIMUM_USE_IN_PARALLEL, require('os').cpus().length)
         } else if (conf.nbCores <= 0) {
           conf.nbCores = 1
         }