diff --git a/contracts/verifiers/FflonkVerifier_10.sol b/contracts/verifiers/FflonkVerifier_10.sol
index 8802ca0b..95a7def5 100644
--- a/contracts/verifiers/FflonkVerifier_10.sol
+++ b/contracts/verifiers/FflonkVerifier_10.sol
@@ -20,7 +20,7 @@
 
 pragma solidity >=0.7.0 <0.9.0;
 
-contract FflonkVerifier {
+contract FflonkVerifier_10 {
     uint32 constant n     = 16777216; // Domain size
 
     // Verification Key data
diff --git a/contracts/verifiers/FflonkVerifier_11.sol b/contracts/verifiers/FflonkVerifier_11.sol
index 1365fac1..1b5e8d0c 100644
--- a/contracts/verifiers/FflonkVerifier_11.sol
+++ b/contracts/verifiers/FflonkVerifier_11.sol
@@ -20,7 +20,7 @@
 
 pragma solidity >=0.7.0 <0.9.0;
 
-contract FflonkVerifier {
+contract FflonkVerifier_11 {
     uint32 constant n     = 16777216; // Domain size
 
     // Verification Key data