diff --git a/nettacker/api/engine.py b/nettacker/api/engine.py
index 215bf91b..5a71f0d2 100644
--- a/nettacker/api/engine.py
+++ b/nettacker/api/engine.py
@@ -230,9 +230,12 @@ def compare_scans():
     compare_report_path_filename = get_value(flask_request, "compare_report_path")
     if not compare_report_path_filename:
         compare_report_path_filename = nettacker_application_config["compare_report_path_filename"]
-
+    compare_options = {
+        "scan_compare_id": scan_id_second,
+        "compare_report_path_filename": compare_report_path_filename,
+    }
     try:
-        result = create_compare_report(scan_id_first, scan_id_second, compare_report_path_filename)
+        result = create_compare_report(compare_options, scan_id_first)
         if result:
             return jsonify(
                 structure(
@@ -242,7 +245,7 @@ def compare_scans():
             ), 200
         return jsonify(structure(status="error", msg="Scan ID not found")), 404
     except (FileNotFoundError, PermissionError, IOError):
-        return jsonify(structure(status="error", msg="Not a valid filepath")), 500
+        return jsonify(structure(status="error", msg="Invalid file path")), 500
 
 
 @app.route("/session/check", methods=["GET"])
diff --git a/nettacker/core/app.py b/nettacker/core/app.py
index 06f0ca37..cc63fb6e 100644
--- a/nettacker/core/app.py
+++ b/nettacker/core/app.py
@@ -205,11 +205,7 @@ def run(self):
         exit_code = self.start_scan(scan_id)
         create_report(self.arguments, scan_id)
         if self.arguments.scan_compare_id is not None:
-            create_compare_report(
-                scan_id,
-                self.arguments.scan_compare_id,
-                self.arguments.compare_report_path_filename,
-            )
+            create_compare_report(self.arguments, scan_id)
         log.info(_("done"))
 
         return exit_code
diff --git a/nettacker/core/graph.py b/nettacker/core/graph.py
index 87f79583..9d594caf 100644
--- a/nettacker/core/graph.py
+++ b/nettacker/core/graph.py
@@ -99,17 +99,17 @@ def build_text_table(events):
 
 
 def create_compare_text_table(results):
-    _table = texttable.Texttable()
+    table = texttable.Texttable()
     table_headers = list(results.keys())
-    _table.add_rows([table_headers])
-    _table.add_rows(
+    table.add_rows([table_headers])
+    table.add_rows(
         [
             table_headers,
             [results[col] for col in table_headers],
         ]
     )
-    _table.set_cols_width([len(i) for i in table_headers])
-    return _table.draw() + "\n\n"
+    table.set_cols_width([len(i) for i in table_headers])
+    return table.draw() + "\n\n"
 
 
 def create_report(options, scan_id):
@@ -205,7 +205,7 @@ def create_report(options, scan_id):
     return True
 
 
-def create_compare_report(scan_id, comp_id, filepath):
+def create_compare_report(options, scan_id):
     """
     if compare_id is given then create the report of comparision b/w scans
     Args:
@@ -214,6 +214,7 @@ def create_compare_report(scan_id, comp_id, filepath):
     Returns:
         True if success otherwise None
     """
+    comp_id = options["scan_compare_id"] if isinstance(options, dict) else options.scan_compare_id
     scan_log_curr = get_logs_by_scan_id(scan_id)
     scan_logs_comp = get_logs_by_scan_id(comp_id)
 
@@ -249,7 +250,11 @@ def get_modules_ports(item):
         "new_targets_discovered": tuple(curr_modules_ports - comp_modules_ports),
         "old_targets_not_detected": tuple(comp_modules_ports - curr_modules_ports),
     }
-    compare_report_path_filename = filepath
+    compare_report_path_filename = (
+        options["compare_report_path_filename"]
+        if isinstance(options, dict)
+        else options.compare_report_path_filename
+    )
     if (
         len(compare_report_path_filename) >= 5 and compare_report_path_filename[-5:] == ".html"
     ) or (len(compare_report_path_filename) >= 4 and compare_report_path_filename[-4:] == ".htm"):