Index: utils/aflpp_driver/aflpp_driver.c
--- utils/aflpp_driver/aflpp_driver.c.orig
+++ utils/aflpp_driver/aflpp_driver.c
@@ -231,7 +231,9 @@ static int ExecuteFilesOnyByOne(int argc, char **argv,
 
     if (fd == -1) { continue; }
 
-#ifndef __HAIKU__
+#ifdef __OpenBSD__
+    ssize_t length = read(fd, buf, MAX_FILE);
+#elif !defined(__HAIKU__)
     ssize_t length = syscall(SYS_read, fd, buf, MAX_FILE);
 #else
     ssize_t length = _kern_read(fd, buf, MAX_FILE);
