diff --git a/src/arm/linux/chipset.c b/src/arm/linux/chipset.c
index 34237882..7bddfb10 100644
--- a/src/arm/linux/chipset.c
+++ b/src/arm/linux/chipset.c
@@ -1,4 +1,3 @@
-#include <ctype.h>
 #include <stdbool.h>
 #include <stdint.h>
 #include <stdio.h>