diff --git a/src/logs.cpp b/src/logs.cpp
index 320867085..968a99ecf 100644
--- a/src/logs.cpp
+++ b/src/logs.cpp
@@ -173,7 +173,7 @@ void writeLogs()
 #if defined(RTCLOCK)
       struct gtm utm;
       gettime(&utm);
-      f_printf(&g_oLogFile, "%4d-%02d-%02d,%02d:%02d:%02d.02d,", utm.tm_year+1900, utm.tm_mon+1, utm.tm_mday, utm.tm_hour, utm.tm_min, utm.tm_sec, g_ms100);
+      f_printf(&g_oLogFile, "%4d-%02d-%02d,%02d:%02d:%02d.%02d,", utm.tm_year+1900, utm.tm_mon+1, utm.tm_mday, utm.tm_hour, utm.tm_min, utm.tm_sec, g_ms100);
 #else
       f_printf(&g_oLogFile, "%d,", tmr10ms);
 #endif