diff --git a/find_duplicate_files/find_duplicate_files.py b/find_duplicate_files/find_duplicate_files.py
index 4613da2..da2d4ce 100644
--- a/find_duplicate_files/find_duplicate_files.py
+++ b/find_duplicate_files/find_duplicate_files.py
@@ -59,7 +59,7 @@ class find_duplicate_files:
         self.cache_db.commit()
 
     def _check_file_cache(self, file):
-        file_sql = file.replace("'", "\'")
+        file_sql = file.replace("'", "\\'")
         query = f"SELECT hash FROM files WHERE file = '{file_sql}'"
         try:
             result = self.cur.execute(query)
@@ -73,7 +73,7 @@ class find_duplicate_files:
             return False
 
     def _cache_file(self, file, hash):
-        file_sql = file.replace("'", "\'")
+        file_sql = file.replace("'", "\\'")
         query = f"INSERT INTO files (hash, file) VALUES ('{file_sql}', '{hash}')"
         try:
             result = self.cur.execute(query)