diff --git a/src/timedate.cpp b/src/timedate.cpp
index aed13f5..59812ad 100644
--- a/src/timedate.cpp
+++ b/src/timedate.cpp
@@ -325,7 +325,7 @@ namespace dlackware::timedate
     bool ntp_synchronized()
     {
         timex buffer{ .modes = 0 };
-        int ntp_result = ntp_adjtime(&buffer);
+        int ntp_result = adjtimex(&buffer);
 
         if (ntp_result == -1)
         {