diff --git a/include/SFML/Audio/Music.h b/include/SFML/Audio/Music.h
index 526fe55..4d78495 100644
--- a/include/SFML/Audio/Music.h
+++ b/include/SFML/Audio/Music.h
@@ -32,6 +32,7 @@
 #include <SFML/Audio/SoundStatus.h>
 #include <SFML/Audio/Types.h>
 #include <SFML/System/InputStream.h>
+#include <stddef.h>
 
 
 ////////////////////////////////////////////////////////////
diff --git a/include/SFML/Audio/SoundBuffer.h b/include/SFML/Audio/SoundBuffer.h
index b0f2a6a..b6db777 100644
--- a/include/SFML/Audio/SoundBuffer.h
+++ b/include/SFML/Audio/SoundBuffer.h
@@ -30,6 +30,7 @@
 ////////////////////////////////////////////////////////////
 #include <SFML/Config.h>
 #include <SFML/Audio/Types.h>
+#include <stddef.h>
 
 
 ////////////////////////////////////////////////////////////
diff --git a/include/SFML/Graphics/Font.h b/include/SFML/Graphics/Font.h
index 7667c6b..04136e3 100644
--- a/include/SFML/Graphics/Font.h
+++ b/include/SFML/Graphics/Font.h
@@ -31,6 +31,7 @@
 #include <SFML/Graphics/Glyph.h>
 #include <SFML/Graphics/Types.h>
 #include <SFML/System/InputStream.h>
+#include <stddef.h>
 
 
 ////////////////////////////////////////////////////////////
diff --git a/include/SFML/Graphics/Image.h b/include/SFML/Graphics/Image.h
index 101ea41..3a9f412 100644
--- a/include/SFML/Graphics/Image.h
+++ b/include/SFML/Graphics/Image.h
@@ -33,6 +33,7 @@
 #include <SFML/Graphics/Rect.h>
 #include <SFML/Graphics/Types.h>
 #include <SFML/System/InputStream.h>
+#include <stddef.h>
 
 
 ////////////////////////////////////////////////////////////
diff --git a/include/SFML/Graphics/Text.h b/include/SFML/Graphics/Text.h
index f5691ac..56b762c 100644
--- a/include/SFML/Graphics/Text.h
+++ b/include/SFML/Graphics/Text.h
@@ -33,6 +33,7 @@
 #include <SFML/Graphics/Color.h>
 #include <SFML/Graphics/Rect.h>
 #include <SFML/Graphics/Types.h>
+#include <stddef.h>
 
 
 ////////////////////////////////////////////////////////////
diff --git a/include/SFML/Network/Ftp.h b/include/SFML/Network/Ftp.h
index 05ee283..54c2b24 100644
--- a/include/SFML/Network/Ftp.h
+++ b/include/SFML/Network/Ftp.h
@@ -31,6 +31,7 @@
 #include <SFML/Config.h>
 #include <SFML/Network/IpAddress.h>
 #include <SFML/Network/Types.h>
+#include <stddef.h>
 
 
 ////////////////////////////////////////////////////////////
diff --git a/include/SFML/Network/Packet.h b/include/SFML/Network/Packet.h
index 15ddc2f..01b548d 100644
--- a/include/SFML/Network/Packet.h
+++ b/include/SFML/Network/Packet.h
@@ -30,6 +30,7 @@
 ////////////////////////////////////////////////////////////
 #include <SFML/Config.h>
 #include <SFML/Network/Types.h>
+#include <stddef.h>
 
 
 ////////////////////////////////////////////////////////////
diff --git a/include/SFML/Network/TcpSocket.h b/include/SFML/Network/TcpSocket.h
index bea3486..be7bbd8 100644
--- a/include/SFML/Network/TcpSocket.h
+++ b/include/SFML/Network/TcpSocket.h
@@ -32,6 +32,7 @@
 #include <SFML/Network/IpAddress.h>
 #include <SFML/Network/SocketStatus.h>
 #include <SFML/Network/Types.h>
+#include <stddef.h>
 
 
 ////////////////////////////////////////////////////////////
diff --git a/include/SFML/Network/UdpSocket.h b/include/SFML/Network/UdpSocket.h
index 3badf25..26f40c1 100644
--- a/include/SFML/Network/UdpSocket.h
+++ b/include/SFML/Network/UdpSocket.h
@@ -32,6 +32,7 @@
 #include <SFML/Network/IpAddress.h>
 #include <SFML/Network/SocketStatus.h>
 #include <SFML/Network/Types.h>
+#include <stddef.h>
 
 
 ////////////////////////////////////////////////////////////
diff --git a/include/SFML/Window/VideoMode.h b/include/SFML/Window/VideoMode.h
index 8b4143b..d2f479b 100644
--- a/include/SFML/Window/VideoMode.h
+++ b/include/SFML/Window/VideoMode.h
@@ -28,6 +28,7 @@
 // Headers
 ////////////////////////////////////////////////////////////
 #include <SFML/Config.h>
+#include <stddef.h>
 
 
 ////////////////////////////////////////////////////////////