diff --git a/tools/power/cpupower/lib/sysfs.c b/tools/power/cpupower/lib/sysfs.c
index 9a35456ba6b2..870713a75a81 100644
--- a/tools/power/cpupower/lib/sysfs.c
+++ b/tools/power/cpupower/lib/sysfs.c
@@ -17,7 +17,7 @@
 #include "cpufreq.h"
 
 #define PATH_TO_CPU "/sys/devices/system/cpu/"
-#define MAX_LINE_LEN 255
+#define MAX_LINE_LEN 4096
 #define SYSFS_PATH_MAX 255