diff --git a/tests/jq_fuzz_load_file.c b/tests/jq_fuzz_load_file.c
index e362d028..fb11277f 100644
--- a/tests/jq_fuzz_load_file.c
+++ b/tests/jq_fuzz_load_file.c
@@ -1,5 +1,6 @@
 #include <stdint.h>
 #include <stdlib.h>
+#include <unistd.h>
 
 #include "jv.h"