diff --git a/libfuse-lite/helper.c b/libfuse-lite/helper.c
index 3029e173..e2860433 100644
--- a/libfuse-lite/helper.c
+++ b/libfuse-lite/helper.c
@@ -18,6 +18,7 @@
 #include <string.h>
 #include <limits.h>
 #include <errno.h>
+#include <sys/param.h>
 
 enum  {
     KEY_HELP,
diff --git a/libfuse-lite/mount_util.c b/libfuse-lite/mount_util.c
index ddd81f7b..e8154d21 100644
--- a/libfuse-lite/mount_util.c
+++ b/libfuse-lite/mount_util.c
@@ -19,6 +19,7 @@
 #include <sys/stat.h>
 #include <sys/wait.h>
 #include <sys/mount.h>
+#include <sys/param.h>
 
 static int mtab_needs_update(const char *mnt)
 {