diff --git a/bindings/c/tag_c.cpp b/bindings/c/tag_c.cpp
index c600cd8b..394e88c6 100644
--- a/bindings/c/tag_c.cpp
+++ b/bindings/c/tag_c.cpp
@@ -29,6 +29,7 @@
 #include <oggflacfile.h>
 #include <mpcfile.h>
 #include <tag.h>
+#include <string.h>
 #include <id3v2framefactory.h>
 
 using namespace TagLib;
diff --git a/examples/tagwriter.cpp b/examples/tagwriter.cpp
index 2a44cf7f..859a9a82 100644
--- a/examples/tagwriter.cpp
+++ b/examples/tagwriter.cpp
@@ -23,6 +23,7 @@
  */
 
 #include <iostream>
+#include <string.h>
 
 #include <stdio.h>
 #include <sys/types.h>
diff --git a/taglib/toolkit/tbytevector.cpp b/taglib/toolkit/tbytevector.cpp
index 9b2bcc26..363b7685 100644
--- a/taglib/toolkit/tbytevector.cpp
+++ b/taglib/toolkit/tbytevector.cpp
@@ -24,6 +24,8 @@
 #include <tstring.h>
 #include <tdebug.h>
 
+#include <string.h>
+
 #include "tbytevector.h"
 
 // This is a bit ugly to keep writing over and over again.
diff --git a/taglib/toolkit/tfile.cpp b/taglib/toolkit/tfile.cpp
index becbb4d2..ae6ec82e 100644
--- a/taglib/toolkit/tfile.cpp
+++ b/taglib/toolkit/tfile.cpp
@@ -24,6 +24,7 @@
 #include "tdebug.h"
 
 #include <stdio.h>
+#include <string.h>
 #include <sys/stat.h>
 #ifdef _WIN32
 # include <io.h>
diff --git a/taglib/toolkit/tstring.cpp b/taglib/toolkit/tstring.cpp
index 923b9502..01cff0d1 100644
--- a/taglib/toolkit/tstring.cpp
+++ b/taglib/toolkit/tstring.cpp
@@ -25,6 +25,8 @@
 
 #include <iostream>
 
+#include <string.h>
+
 namespace TagLib {
 
   inline unsigned short byteSwap(unsigned short x)
diff --git a/tests/toolkit-test.cpp b/tests/toolkit-test.cpp
index 85503c1b..372c75d6 100644
--- a/tests/toolkit-test.cpp
+++ b/tests/toolkit-test.cpp
@@ -23,6 +23,7 @@
  */
 
 #include <iostream>
+#include <string.h>
 
 #include <tbytevector.h>
 #include <tbytevectorlist.h>