diff --git a/nptl/tst-thread_local1.cc b/nptl/tst-thread_local1.cc
index 9608afa4b7..338aafea05 100644
--- a/nptl/tst-thread_local1.cc
+++ b/nptl/tst-thread_local1.cc
@@ -21,6 +21,7 @@
 #include <stdio.h>
 #include <string.h>
 
+#include <array>
 #include <functional>
 #include <string>
 #include <thread>