diff --git a/src/liblelantus/innerproduct_proof_verifier.cpp b/src/liblelantus/innerproduct_proof_verifier.cpp
index 2a264858cb..bf96c5bd36 100755
--- a/src/liblelantus/innerproduct_proof_verifier.cpp
+++ b/src/liblelantus/innerproduct_proof_verifier.cpp
@@ -62,7 +62,7 @@ bool InnerProductProofVerifier::verify_util(
     return InnerProductProofVerifier(g_p, h_p, u_, p_p, version_).verify_util(proof, itr_l + 1, itr_r + 1, challengeGenerator);
 }
 
-bool InnerProductProofVerifier::verify_fast(std::size_t n, const Scalar& x, const InnerProductProof& proof, unique_ptr<ChallengeGenerator>& challengeGenerator) {
+bool InnerProductProofVerifier::verify_fast(std::size_t n, const Scalar& x, const InnerProductProof& proof, std::unique_ptr<ChallengeGenerator>& challengeGenerator) {
     u_  *= x;
     P_ += u_ * proof.c_;
     return verify_fast_util(n, proof, challengeGenerator);
diff --git a/src/liblelantus/innerproduct_proof_verifier.h b/src/liblelantus/innerproduct_proof_verifier.h
index 03dc38616d..1e0880dae8 100755
--- a/src/liblelantus/innerproduct_proof_verifier.h
+++ b/src/liblelantus/innerproduct_proof_verifier.h
@@ -17,8 +17,8 @@ class InnerProductProofVerifier {
             const GroupElement& P,
             int version); // if(version >= 2) we should pass CHash256 in verify
 
-    bool verify(const Scalar& x, const InnerProductProof& proof, unique_ptr<ChallengeGenerator>& challengeGenerator);
-    bool verify_fast(std::size_t n, const Scalar& x, const InnerProductProof& proof, unique_ptr<ChallengeGenerator>& challengeGenerator);
+    bool verify(const Scalar& x, const InnerProductProof& proof, std::unique_ptr<ChallengeGenerator>& challengeGenerator);
+    bool verify_fast(std::size_t n, const Scalar& x, const InnerProductProof& proof, std::unique_ptr<ChallengeGenerator>& challengeGenerator);
 
 private:
     bool verify_util(
@@ -27,7 +27,7 @@ class InnerProductProofVerifier {
             typename std::vector<GroupElement>::const_iterator itr_r,
             std::unique_ptr<ChallengeGenerator>& challengeGenerator);
 
-    bool verify_fast_util(std::size_t n, const InnerProductProof& proof, unique_ptr<ChallengeGenerator>& challengeGenerator);
+    bool verify_fast_util(std::size_t n, const InnerProductProof& proof, std::unique_ptr<ChallengeGenerator>& challengeGenerator);
 
 private:
     const std::vector<GroupElement>& g_;
diff --git a/src/liblelantus/lelantus_verifier.cpp b/src/liblelantus/lelantus_verifier.cpp
index cd218fe642..bea26beca3 100644
--- a/src/liblelantus/lelantus_verifier.cpp
+++ b/src/liblelantus/lelantus_verifier.cpp
@@ -213,7 +213,7 @@ bool LelantusVerifier::verify_rangeproof(
         commitments[0].emplace_back(Cout[i].getValue());
     }
 
-    std:vector<RangeProof> proofs;
+    std::vector<RangeProof> proofs;
     proofs.reserve(1); // size of batch
     proofs.emplace_back(bulletproof);