diff --git a/src/headless/tests/ParameterSmoothTest.cpp b/src/headless/tests/ParameterSmoothTest.cpp
index 3fc46dc5..378581cb 100644
--- a/src/headless/tests/ParameterSmoothTest.cpp
+++ b/src/headless/tests/ParameterSmoothTest.cpp
@@ -62,7 +62,7 @@ class ParameterSmoothTest : public UnitTest
                                          testParameter (proc, floatParam);
                                      }
                                  },
-                                 { "Delay", "GuitarML", "Junior B", "Tweed", "Octaver", "Swinger Pre", "Trainer Rev.", "Crying Child" });
+                                 { "Delay", "GuitarML", "Junior B", "Tweed", "Octaver", "Swinger Pre", "Trainer Rev.", "Crying Child", "Fuzz Machine" });
     }
 };
 
diff --git a/src/headless/tests/SilenceTest.cpp b/src/headless/tests/SilenceTest.cpp
index 8facb0a8..fd6ff135 100644
--- a/src/headless/tests/SilenceTest.cpp
+++ b/src/headless/tests/SilenceTest.cpp
@@ -45,7 +45,8 @@ class SilenceTest : public UnitTest
                                      proc->processAudioBlock (buffer);
 
                                      testBuffer (buffer.getReadPointer (0));
-                                 });
+                                 },
+                                 { "Fuzz Machine" });
     }
 };