diff --git a/Source/Core/Core/Src/HW/SerialInterface.cpp b/Source/Core/Core/Src/HW/SerialInterface.cpp
index fac98a1ba8..ce59fde8c7 100644
--- a/Source/Core/Core/Src/HW/SerialInterface.cpp
+++ b/Source/Core/Core/Src/HW/SerialInterface.cpp
@@ -527,8 +527,10 @@ void RunSIBuffer()
 		outLength = 128;
 	else 
 		outLength++;
-
+
+#ifdef LOGGING
 	int numOutput = g_Channel[g_ComCSR.CHANNEL].m_pDevice->RunBuffer(g_SIBuffer, inLength);
+#endif
 
 	LOG(SERIALINTERFACE, "RunSIBuffer     (intLen: %i    outLen: %i) (processed: %i)", inLength, outLength, numOutput);