diff --git a/helpers.h b/helpers.h
index 8307c43..6072963 100644
--- a/helpers.h
+++ b/helpers.h
@@ -3,6 +3,8 @@
 
 #include "compiler/compiler.h"
 
+#include <time.h>
+
 struct in_addr;
 
 extern int __weak posix_memalign(void **ptr, size_t align, size_t size);
@@ -12,4 +14,4 @@
 extern int __weak sync_file_range(int fd, off64_t offset, off64_t nbytes,
 					unsigned int flags);
 
-#endif
+#endif /* FIO_HELPERS_H_ */