diff --git a/software/libinfnoise_private.h b/software/libinfnoise_private.h
index 80478ef..6776828 100644
--- a/software/libinfnoise_private.h
+++ b/software/libinfnoise_private.h
@@ -1,6 +1,7 @@
 #include <stdbool.h>
 #include <stdint.h>
 #include <sys/types.h>
+#include <linux/limits.h>
 #include <ftdi.h>
 #include <time.h>