diff --git a/libbacktrace/ChangeLog b/libbacktrace/ChangeLog
index fb7e8b0aa79..301fac1295e 100644
--- a/libbacktrace/ChangeLog
+++ b/libbacktrace/ChangeLog
@@ -1,3 +1,7 @@
+2015-09-09  Hans-Peter Nilsson  <hp@axis.com>
+
+	* backtrace.c: #include <sys/types.h>.
+
 2015-09-08  Ian Lance Taylor  <iant@google.com>
 
 	PR other/67457
diff --git a/libbacktrace/backtrace.c b/libbacktrace/backtrace.c
index d675e1e1062..19671fa0686 100644
--- a/libbacktrace/backtrace.c
+++ b/libbacktrace/backtrace.c
@@ -32,6 +32,8 @@ POSSIBILITY OF SUCH DAMAGE.  */
 
 #include "config.h"
 
+#include <sys/types.h>
+
 #include "unwind.h"
 #include "backtrace.h"
 #include "internal.h"