diff --git a/ChangeLog b/ChangeLog
index ad7303f886..b4d6496886 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2011-06-23  Marek Polacek  <mpolacek@redhat.com>
+
+	* nss/nss_db/db-open.c: Include <unistd.h> for read declaration.
+
 2011-06-22  Ulrich Drepper  <drepper@gmail.com>
 
 	[BZ #12907]
diff --git a/nss/nss_db/db-open.c b/nss/nss_db/db-open.c
index 36ce494d02..5a805cffbf 100644
--- a/nss/nss_db/db-open.c
+++ b/nss/nss_db/db-open.c
@@ -22,6 +22,7 @@
 #include <dlfcn.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
 #include <sys/mman.h>
 #include <not-cancel.h>