diff --git a/circuits/eddsamimcsponge.circom b/circuits/eddsamimcsponge.circom
index af38d57..93405e9 100644
--- a/circuits/eddsamimcsponge.circom
+++ b/circuits/eddsamimcsponge.circom
@@ -52,7 +52,7 @@ template EdDSAMiMCSpongeVerifier() {
 
 // Calculate the h = H(R,A, msg)
 
-    component hash = MiMCSponge(5, 220, 1);
+    component hash = MiMCSponge(5, 1);
     hash.ins[0] <== R8x;
     hash.ins[1] <== R8y;
     hash.ins[2] <== Ax;
diff --git a/circuits/mimcsponge.circom b/circuits/mimcsponge.circom
index 3e84c46..8ccb329 100644
--- a/circuits/mimcsponge.circom
+++ b/circuits/mimcsponge.circom
@@ -1,11 +1,13 @@
 // implements MiMC-2n/n as hash using a sponge construction.
 // log_5(21888242871839275222246405745257275088548364400416034343698204186575808495617) ~= 110
 // => nRounds should be 220
-template MiMCSponge(nInputs, nRounds, nOutputs) {
+template MiMCSponge(nInputs, nOutputs) {
   signal input ins[nInputs];
   signal input k;
   signal output outs[nOutputs];
 
+  var nRounds = 220;
+
   // S = R||C
   component S[nInputs + nOutputs - 1];