diff --git a/c/tools/log/log.c b/c/tools/log/log.c
index b271844..c3fc52c 100644
--- a/c/tools/log/log.c
+++ b/c/tools/log/log.c
@@ -182,11 +182,9 @@ int cleanup(log_manager *self)
     else{
         write_into_block(logbuf,loc->log,&buf_length,MAX_LOG_LENGTH,"log.txt");
     }
-    if(logbuf == failback&&buf_length>MAX_LOG_LENGTH)
-        logbuf[MAX_LOG_LENGTH-1] = '\0';
-    else{
-        logbuf[buf_length] = '\0';
-    }
+
+    logbuf[buf_length] = '\0';
+    
     free(loc);
 
     fd = open("log.txt",O_CREAT | O_WRONLY | O_APPEND, 0644);