diff --git a/include/kernel/time.h b/include/kernel/time.h
index fc8fc67..894c5ab 100644
--- a/include/kernel/time.h
+++ b/include/kernel/time.h
@@ -39,6 +39,6 @@ extern void IoEnableRtc(void);
 extern void IoPrintRtcTime(void);
 extern ulong IoGetRtcTicks(void);
 extern Time_t* IoGetRtcTime(void);
-extern char* IoGetRtcTimeChar(void);
+extern error_t IoGetRtcTimeChar(char* timeChar);
 //static char* WeekDays[7] = {"Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"};
 
diff --git a/kaleid/kernel/init/init.c b/kaleid/kernel/init/init.c
index ac8948c..0ac5b29 100644
--- a/kaleid/kernel/init/init.c
+++ b/kaleid/kernel/init/init.c
@@ -93,9 +93,20 @@ noreturn void BtStartKern(multiboot_info_t *mbInfo, uint mbMagic, void *codeSeg)
     /*     i++; */
     /* } */
 
-    char * cc = IoGetRtcTimeChar();
+    char *cc = "";
+    IoGetRtcTimeChar(cc);
 
-    KernLog("End at %s\n", cc);
+    BStdOut->flusher(BStdOut);
+    KernLog("\nTEST 1:\n");
+    KernLog("%s\n", cc);
+
+    BStdOut->flusher(BStdOut);
+    KernLog("\nTEST 2:\n");
+    KernLog("[test] %s\n", cc);
+
+    BStdOut->flusher(BStdOut);
+    KernLog("\nTEST 3:\n");
+    KernLog("[test] %s [fin du test]\n", cc);
 
     // End this machine's suffering
     BStdOut->flusher(BStdOut);
diff --git a/kaleid/kernel/io/rtc.c b/kaleid/kernel/io/rtc.c
index 04136e5..0b03b39 100644
--- a/kaleid/kernel/io/rtc.c
+++ b/kaleid/kernel/io/rtc.c
@@ -150,7 +150,7 @@ void RtcHandler(ISRFrame_t *regs)
 void IoPrintRtcTime(void)
 {
     Time_t* RtcTime = IoGetRtcTime();
-    KernLog("[RTC Time] %02d/%02d/%04d ; %02d:%02d:%02d\n",
+    KernLog("[RTC Time] %02d/%02d/%04d ; %02d:%02d:%02d \n\n",
             RtcTime->day,
             RtcTime->month,
             RtcTime->year + RtcTime->century*100,
@@ -161,10 +161,9 @@ void IoPrintRtcTime(void)
 }
 
 // FIXME XXX FIXME
-char* IoGetRtcTimeChar(void)
+error_t IoGetRtcTimeChar(char *timeChar)
 {
-    Time_t* RtcTime = IoGetRtcTime();
-    char* timeChar =  "";
+    Time_t *RtcTime = IoGetRtcTime();
     sprintf(timeChar, "%hhd/%hhd/%hd ; %hhd:%hhd:%hhd",
             RtcTime->day,
             RtcTime->month,
@@ -173,7 +172,7 @@ char* IoGetRtcTimeChar(void)
             RtcTime->min,
             RtcTime->sec
             );
-    return timeChar;
+    return EOK;
 }
 // END OF FIXME XXX FIXME