diff --git a/libatomic/testsuite/libatomic.c/atomic-generic.c b/libatomic/testsuite/libatomic.c/atomic-generic.c
index 11ef6c5831d..662467ea82a 100644
--- a/libatomic/testsuite/libatomic.c/atomic-generic.c
+++ b/libatomic/testsuite/libatomic.c/atomic-generic.c
@@ -9,6 +9,7 @@
 
 #include <stdlib.h>
 #include <stdbool.h>
+#include <string.h>
 
 extern void abort();