1 files changed, 1 insertions, 0 deletions
diff --git a/src/seek_set.c b/src/seek_set.c
index 19b8265..a1a36d0 100644
--- a/src/seek_set.c
+++ b/src/seek_set.c
@@ -1,6 +1,7 @@
 /* Public domain. */
 
 #include <sys/types.h>
+#include <unistd.h>
 #include "seek.h"
 
 #define SET 0 /* sigh */