diff --git a/rtkaio/ChangeLog b/rtkaio/ChangeLog
index 86a56ef1f0..730cedbb1f 100644
--- a/rtkaio/ChangeLog
+++ b/rtkaio/ChangeLog
@@ -1,3 +1,7 @@
+2009-10-30  Andreas Schwab  <schwab@redhat.com>
+
+	* tst-aiod.h: Include <string.h>.
+
 2009-09-30  Andreas Schwab  <schwab@redhat.com>
 
 	* sysdeps/unix/sysv/linux/x86_64/librtkaio-cancellation.S: New
diff --git a/rtkaio/tst-aiod.h b/rtkaio/tst-aiod.h
index 57f0e48ce5..c4971e0cfc 100644
--- a/rtkaio/tst-aiod.h
+++ b/rtkaio/tst-aiod.h
@@ -20,6 +20,7 @@
 
 #include <fcntl.h>
 #include <sys/mman.h>
+#include <string.h>
 #include <unistd.h>
 
 static int