diff --git a/src/simulator.cpp b/src/simulator.cpp
index 0c78aa41..5a8c28e1 100644
--- a/src/simulator.cpp
+++ b/src/simulator.cpp
@@ -1,5 +1,3 @@
-#include "..\include\simulator.h"
-#include "..\include\simulator.h"
 #include "../include/simulator.h"
 
 #include "../include/constants.h"
@@ -48,7 +46,6 @@ Simulator::~Simulator() {
     assert(m_system == nullptr);
     assert(m_exhaustFlowStagingBuffer == nullptr);
     assert(m_delayFilters == nullptr);
-    assert(m_antialiasingFilters == nullptr);
     assert(m_dynoTorqueSamples == nullptr);
 }
 
diff --git a/src/synthesizer.cpp b/src/synthesizer.cpp
index 08ea92a5..e3ee5721 100644
--- a/src/synthesizer.cpp
+++ b/src/synthesizer.cpp
@@ -304,7 +304,7 @@ int16_t Synthesizer::renderAudio(int inputSample) {
         float v_in =
             f_p * dF_F_mix
             + f * r_mixed * (1 - dF_F_mix);
-        if (fpclassify(v_in) == FP_SUBNORMAL) {
+        if (std::fpclassify(v_in) == FP_SUBNORMAL) {
             v_in = 0;
         }