diff --git a/docs/source/access_data/roi/region_of_interest_2025.ipynb b/docs/source/access_data/roi/region_of_interest_2025.ipynb
index 594888e818e24fae3a06f8a2627fb1b28588bfd6..d27abbcb78194fe668ed66595521b5ac66176e01 100644
--- a/docs/source/access_data/roi/region_of_interest_2025.ipynb
+++ b/docs/source/access_data/roi/region_of_interest_2025.ipynb
@@ -111,7 +111,7 @@
     "\n",
     "roi_src_filename = 'roi_wgs84.shp'\n",
     "\n",
-    "roi_file = f'{roi_path}{roi_src_filename}'"
+    "roi_src_file = f'{roi_path}{roi_src_filename}'"
    ]
   },
   {
@@ -192,11 +192,11 @@
    ],
    "source": [
     "\n",
-    "roi_filename = f'roi_{crs_dst[5:]}.shp'\n",
+    "roi_dst_filename = f'roi_{crs_dst[5:]}.shp'\n",
     "\n",
-    "roi_file = f'{roi_path}{roi_filename}'\n",
+    "roi_dst_file = f'{roi_path}{roi_dst_filename}'\n",
     "\n",
-    "print(f'ROI shapefile will be stored in : {roi_file}')"
+    "print(f'ROI shapefile will be stored in : {roi_dst_file}')"
    ]
   },
   {
@@ -238,9 +238,9 @@
     }
    ],
    "source": [
-    "if not os.path.isfile(roi_file):\n",
-    "    gdf_reproj.to_file(filename=roi_file, driver='ESRI Shapefile')\n",
-    "    print(f'A new vector file is created : {roi_file}')\n",
+    "if not os.path.isfile(roi_dst_file):\n",
+    "    gdf_reproj.to_file(filename=roi_dst_file, driver='ESRI Shapefile')\n",
+    "    print(f'A new vector file is created : {roi_dst_file}')\n",
     "\n",
     "else:\n",
     "    print('The ROI vector file already exists --> delete it or change the variable \"roi_name\" if you want to create a new one')"