diff --git a/nptl/tst-basic7.c b/nptl/tst-basic7.c
index 7dc361aea4..4e7ff5eaf4 100644
--- a/nptl/tst-basic7.c
+++ b/nptl/tst-basic7.c
@@ -19,6 +19,7 @@
 
 #include <errno.h>
 #include <pthread.h>
+#include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>