diff --git a/cp_sh b/cp_sh
index 99d9937..5f17d48 100755
--- a/cp_sh
+++ b/cp_sh
@@ -42,16 +42,16 @@ cat "$md5_tmp" | while read line; do
         echo "$file_md5  $file_aim" >> "${md5}.sucess-log"
         sed -i "/$file_md5/d" "$md5"
       else
-        echo "Error: Hash mismatch: \"NEW:${file_md5_new} OLD:${file_md5}\" $file_aim" | tee "${md5}.error-log"
+        echo "Error: Hash mismatch: \"NEW:${file_md5_new} OLD:${file_md5}\" $file_aim" | tee -a "${md5}.error-log"
         sed -i "/$file_md5/d" "$md5"
       fi
 
     else
-      echo "To Big: $file_md5  $file_orig" | tee "${md5}.error-log"
+      echo "To Big: $file_md5  $file_orig" | tee -a "${md5}.error-log"
     fi
 
   else
-    echo "Error: Not Exist: $file_orig" | tee "${md5}.error-log"
+    echo "Error: Not Exist: $file_orig" | tee -a "${md5}.error-log"
     sed -i "/$file_md5/d" "$md5"
   fi
 done