diff --git a/sortbooks.sh b/sortbooks.sh
index 7749003..4722a2b 100755
--- a/sortbooks.sh
+++ b/sortbooks.sh
@@ -34,6 +34,10 @@ find_or_create_directory_for_target() {
 
 # Function to move files based on source keywords
 move_files() {
+    # Delete duplicate files using fdupes
+    echo "Removing duplicate files in $WATCHED_DIR..."
+    fdupes -r -N --delete "$WATCHED_DIR"
+
     for FILE in "$WATCHED_DIR"/*.{epub,pdf,mobi,txt}; do
         if [[ -f "$FILE" ]]; then
             FILENAME=$(basename "$FILE")
@@ -54,9 +58,9 @@ move_files() {
 move_files
 
 # Monitor for new or modified files and then sort them
-while inotifywait -e create -e moved_to -e modify "$WATCHED_DIR"; do
+while inotifywait -r -e create -e moved_to -e modify "$WATCHED_DIR"; do
     move_files
-    fdupes -r -N --delete .
 done
 
+shopt -u nocasematch