diff --git a/mt.c b/mt.c
index d4058c0..4837808 100644
--- a/mt.c
+++ b/mt.c
@@ -20,6 +20,7 @@
 #include <fcntl.h>
 #include <sys/types.h>
 #include <sys/ioctl.h>
+#include <sys/sysmacros.h>
 #include <sys/stat.h>
 #include <sys/utsname.h>
 
diff --git a/stinit.c b/stinit.c
index 5a50341..af5582c 100644
--- a/stinit.c
+++ b/stinit.c
@@ -16,6 +16,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <dirent.h>
+#include <limits.h>
 #include <sys/stat.h>
 #include <sys/ioctl.h>
 #include <sys/sysmacros.h>