diff --git a/papis-marvin b/papis-marvin
index 50c57e8..6d7545b 100755
--- a/papis-marvin
+++ b/papis-marvin
@@ -12,8 +12,6 @@ import papis.database
 import re
 import subprocess
 
-# use argument passed to command as file or default file here
-
 
 def format_entry(row) -> str:
     text = f"> {row['HighlightText']}"
@@ -26,6 +24,17 @@ def format_entry(row) -> str:
     return text
 
 
+_old_title = ""
+def is_same_book(title):
+    global _old_title
+
+    same = _old_title == title
+    _old_title = title
+    if same:
+        return True
+    return False
+
+
 def main(fpath, db):
     notes = {}
     with open(fpath) as f:
@@ -34,15 +43,12 @@ def main(fpath, db):
         csv = csv.DictReader(f)
 
         title_strip_pattern = re.compile(r"([^\s\w]|_)+")
-        old_title = ""
         note_file = ""
         for row in csv:
             title_stripped = title_strip_pattern.sub("", row["Title"])
 
             # switch to next book
-            if old_title != row["Title"]:
-                old_title = row["Title"]
-
+            if not is_same_book(row["Title"]):
                 documents = db.query(
                     f"author:({row['Author']}) title:({title_stripped})"
                 )
@@ -89,6 +95,7 @@ def main(fpath, db):
 
 
 if __name__ == "__main__":
+    # use argument passed to command as file or default file here
     fpath = (
         sys.argv[1]
         if len(sys.argv) > 1