diff --git a/tag.sh b/tag.sh
index 2091403..49f9d8d 100755
--- a/tag.sh
+++ b/tag.sh
@@ -150,8 +150,8 @@ add_path() {
     COLUMN="filename,path"
     FILES=()
     for FILE in "$@"; do
-        FILENAME=$(basename "$FILE")
-        FILEPATH=$(dirname "$FILE")
+        local FILENAME=$(basename "$FILE")
+        local FILEPATH=$(realpath $(dirname "$FILE"))
         file_exists_in_db "$FILE" && fail "File '$FILE' already exists in database."
         FILES+=("'$FILENAME'")
         FILES+=("'$FILEPATH'")
@@ -187,9 +187,9 @@ tag_exists_in_db() {
 
 file_exists_in_db() {
     # $FILENAME
-    FILENAME=$(basename "${1:-}")
-    FILEPATH=$(dirname "${1:-}")
-    RESULT=$(sqlite_query "SELECT id FROM files WHERE filename = '$FILENAME' AND path = '$FILEPATH'")
+    local FILENAME=$(basename "${1:-}")
+    local FILEPATH=$(dirname "${1:-}")
+    local RESULT=$(sqlite_query "SELECT id FROM files WHERE filename = '$FILENAME' AND path = '$FILEPATH'")
     if [[ -z "$RESULT" ]]; then
         return 1
     else