diff --git a/resolve/hykkt/permutation/Permutation.cpp b/resolve/hykkt/permutation/Permutation.cpp
index 6adc63ac0..e4ca27465 100644
--- a/resolve/hykkt/permutation/Permutation.cpp
+++ b/resolve/hykkt/permutation/Permutation.cpp
@@ -124,7 +124,6 @@ namespace ReSolve
       double Control[AMD_CONTROL], Info[AMD_INFO];
 
       amd_defaults(Control);
-      amd_control(Control);
 
       int result = amd_order(n_hes_, hes_i_, hes_j_, perm_, Control, Info);
 
diff --git a/tests/unit/hykkt/HykktSolverTests.hpp b/tests/unit/hykkt/HykktSolverTests.hpp
index 823f52453..4d07f9ac1 100644
--- a/tests/unit/hykkt/HykktSolverTests.hpp
+++ b/tests/unit/hykkt/HykktSolverTests.hpp
@@ -14,6 +14,7 @@
 #include <resolve/matrix/Csr.hpp>
 #include <resolve/matrix/MatrixHandler.hpp>
 #include <resolve/matrix/io.hpp>
+#include <resolve/utilities/logger/Logger.hpp>
 #include <resolve/vector/VectorHandler.hpp>
 #include <tests/unit/TestBase.hpp>
 
@@ -214,12 +215,15 @@ namespace ReSolve
         status *= validateResult(zero_rhs_error, tol);
 
         // Check that the solver raises an error when trying to change J_d
-        // from nonempty to empty.
+        // from nonempty to empty. 
         matrix::Csr* J_d_empty = new matrix::Csr(J_d->getNumRows(),
                                                  J_d->getNumColumns(),
                                                  0);
 
+        io::Logger::Verbosity saved_verbosity = io::Logger::verbosity();
+        io::Logger::setVerbosity(io::Logger::NONE); //The error is expected, so mute the logger before triggering it.
         int structure_status = hykktSolver.setMatrixBlocks(H, D_s_reuse, J, J_d_empty);
+        io::Logger::setVerbosity(saved_verbosity);
         status *= (structure_status != 0);
 
         // Exercise initialization and reuse with an empty J_d.