--- a/msi-ec.c
+++ b/msi-ec.c
@@ -38,7 +38,12 @@
 #include <linux/slab.h>
 #include <linux/version.h>
 #include <linux/rtc.h>
-#include <linux/string_choices.h>
+
+#include <linux/version.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(6,6,0)
+#include <linux/string_choices.h>
+#endif
+

 static DEFINE_MUTEX(ec_set_by_mask_mutex);
 static DEFINE_MUTEX(ec_unset_by_mask_mutex);
@@ -1141,6 +1146,20 @@ static struct msi_ec_conf CONF52 __initdata = {
 	},
 };

+#if LINUX_VERSION_CODE < KERNEL_VERSION(6,1,0)
+/* Define our own string choice helpers for older kernels */
+static inline const char *str_on_off(bool v)
+{
+    return v ? "on" : "off";
+}
+
+static inline const char *str_yes_no(bool v)
+{
+    return v ? "yes" : "no";
+}
+#endif
+
+
 static struct msi_ec_conf *CONFIGURATIONS[] __initdata = {
 	&CONF0,
 	&CONF1,