diff --git a/Source/Core/Common/Logging/ConsoleListenerNix.cpp b/Source/Core/Common/Logging/ConsoleListenerNix.cpp
index dd64ca314e..b891b29090 100644
--- a/Source/Core/Common/Logging/ConsoleListenerNix.cpp
+++ b/Source/Core/Common/Logging/ConsoleListenerNix.cpp
@@ -4,6 +4,10 @@
 
 #include <cstdio>
 
+#ifndef _WIN32
+#include <unistd.h>
+#endif
+
 #include "Common/Logging/ConsoleListener.h"
 
 ConsoleListener::ConsoleListener()
diff --git a/Source/Core/Common/Thread.cpp b/Source/Core/Common/Thread.cpp
index 1e60fbb29f..11cb48bb49 100644
--- a/Source/Core/Common/Thread.cpp
+++ b/Source/Core/Common/Thread.cpp
@@ -6,6 +6,10 @@
 #include "Common/CommonTypes.h"
 #include "Common/Thread.h"
 
+#ifndef _WIN32
+#include <unistd.h>
+#endif
+
 #ifdef __APPLE__
 #include <mach/mach.h>
 #elif defined BSD4_4 || defined __FreeBSD__
diff --git a/Source/Core/Core/HW/BBA-TAP/TAP_Unix.cpp b/Source/Core/Core/HW/BBA-TAP/TAP_Unix.cpp
index be16f437eb..7cb546a7de 100644
--- a/Source/Core/Core/HW/BBA-TAP/TAP_Unix.cpp
+++ b/Source/Core/Core/HW/BBA-TAP/TAP_Unix.cpp
@@ -2,6 +2,10 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#ifndef _WIN32
+#include <unistd.h>
+#endif
+
 #include "Common/StringUtil.h"
 #include "Core/HW/EXI_Device.h"
 #include "Core/HW/EXI_DeviceEthernet.h"
diff --git a/Source/Core/Core/HW/WiimoteReal/IONix.cpp b/Source/Core/Core/HW/WiimoteReal/IONix.cpp
index afbaa434b4..c72dbad8b6 100644
--- a/Source/Core/Core/HW/WiimoteReal/IONix.cpp
+++ b/Source/Core/Core/HW/WiimoteReal/IONix.cpp
@@ -2,6 +2,9 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#ifndef _WIN32
+#include <unistd.h>
+#endif
 #include <bluetooth/bluetooth.h>
 #include <bluetooth/hci.h>
 #include <bluetooth/hci_lib.h>
diff --git a/Source/Core/Core/IPC_HLE/WII_Socket.cpp b/Source/Core/Core/IPC_HLE/WII_Socket.cpp
index 07fddb24cc..e5dea8728b 100644
--- a/Source/Core/Core/IPC_HLE/WII_Socket.cpp
+++ b/Source/Core/Core/IPC_HLE/WII_Socket.cpp
@@ -3,6 +3,9 @@
 // Refer to the license.txt file included.
 
 #include <algorithm>
+#ifndef _WIN32
+#include <unistd.h>
+#endif
 
 #include "Common/FileUtil.h"
 #include "Core/Core.h"