diff --git a/audiotagloader/output.py b/audiotagloader/output.py
index 952ffbd..642f896 100644
--- a/audiotagloader/output.py
+++ b/audiotagloader/output.py
@@ -29,7 +29,7 @@ def wrapper(*args, **kwargs) -> tuple[Album, Image, Tracklist]:
                 image.width,
                 image.height,
             ]
-            line_str = "\t".join([str(i) for i in line])
+            line_str = "\t".join([str(i) if i else "Null" for i in line])
             table.append(line_str)
 
         with open((dir / "tags.txt"), "w") as fp:
diff --git a/load_img.sh b/load_img.sh
index 77d4932..d17219f 100755
--- a/load_img.sh
+++ b/load_img.sh
@@ -5,19 +5,26 @@ set -euo pipefail
 DIR="$1"
 IFS=$'\t' read -ra f
 
-curl -so "$DIR/thumb.jpg" "${f[6]}"
-curl -so "$DIR/cover_tmp.jpg" "${f[7]}"
+if [ "${f[6]}" != "Null" ]; then
+    curl -so "$DIR/thumb.jpg" "${f[6]}"
+else
+    echo "no thumb.jpg"
+fi
 
-s=${f[8]}; t=${f[9]}; m=$s; (( t < s )) && m=$t
+if [ "${f[7]}" != "Null" ]; then
+    curl -so "$DIR/cover_tmp.jpg" "${f[7]}"
 
-convert "$DIR/cover_tmp.jpg" -gravity center -crop ${m}x${m}+0+0 +repage "$DIR/cover.jpg" 2>/dev/null
-
-rm "$DIR/cover_tmp.jpg"
+    s=${f[8]}; t=${f[9]}; m=$s; (( t < s )) && m=$t
 
+    convert "$DIR/cover_tmp.jpg" -gravity center -crop ${m}x${m}+0+0 +repage "$DIR/cover.jpg" 2>/dev/null
 
+    rm "$DIR/cover_tmp.jpg"
+else
+    echo "no cover.jpg"
+fi
 
 printf '%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\n' "${f[@]:0:6}" "$DIR/thumb.jpg" "$DIR/cover.jpg"
 
 while IFS=$'\t' read -r -a f; do
     printf '%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\n' "${f[@]:0:6}" "$DIR/thumb.jpg" "$DIR/cover.jpg"
-done
\ No newline at end of file
+done