diff --git a/main/control.c b/main/control.c
index 911421d..955b624 100644
--- a/main/control.c
+++ b/main/control.c
@@ -295,13 +295,13 @@ eControlState getControlState(void)
 
 eControlWeekday getControlCurrentWeekday(void)
 {
+    // Get current time
     time_t now;
-    struct tm *timeinfo;
-
+    struct tm timeinfo;
     time(&now);
-    timeinfo = localtime(&now);
+    localtime_r(&now, &timeinfo);
 
-    int day = timeinfo->tm_wday;
+    int day = timeinfo.tm_wday;
     return (eControlWeekday)((day == 0) ? 6 : day - 1);
 }