diff --git a/backend/server/adventures/models.py b/backend/server/adventures/models.py
index 0d53bc9..22af4e3 100644
--- a/backend/server/adventures/models.py
+++ b/backend/server/adventures/models.py
@@ -14,7 +14,7 @@ def validate_file_extension(value):
     import os
     from django.core.exceptions import ValidationError
     ext = os.path.splitext(value.name)[1]  # [0] returns path+filename
-    valid_extensions = ['.pdf', '.doc', '.docx', '.xls', '.xlsx', '.ppt', '.pptx', '.txt', '.png', '.jpg', '.jpeg', '.gif', '.webp', '.mp4', '.mov', '.avi', '.mkv', '.mp3', '.wav', '.flac', '.ogg', '.m4a', '.wma', '.aac', '.opus', '.zip', '.rar', '.7z', '.tar', '.gz', '.bz2', '.xz', '.zst', '.lz4', '.lzma', '.lzo', '.z', '.tar.gz', '.tar.bz2', '.tar.xz', '.tar.zst', '.tar.lz4', '.tar.lzma', '.tar.lzo', '.tar.z', 'gpx', 'md', 'pdf']
+    valid_extensions = ['.pdf', '.doc', '.docx', '.xls', '.xlsx', '.ppt', '.pptx', '.txt', '.png', '.jpg', '.jpeg', '.gif', '.webp', '.mp4', '.mov', '.avi', '.mkv', '.mp3', '.wav', '.flac', '.ogg', '.m4a', '.wma', '.aac', '.opus', '.zip', '.rar', '.7z', '.tar', '.gz', '.bz2', '.xz', '.zst', '.lz4', '.lzma', '.lzo', '.z', '.tar.gz', '.tar.bz2', '.tar.xz', '.tar.zst', '.tar.lz4', '.tar.lzma', '.tar.lzo', '.tar.z', '.gpx', '.md', '.pdf']
     if not ext.lower() in valid_extensions:
         raise ValidationError('Unsupported file extension.')
 
diff --git a/frontend/src/lib/components/AdventureModal.svelte b/frontend/src/lib/components/AdventureModal.svelte
index 85db0a4..b41c00a 100644
--- a/frontend/src/lib/components/AdventureModal.svelte
+++ b/frontend/src/lib/components/AdventureModal.svelte
@@ -74,9 +74,9 @@
 		'.tar.lzma',
 		'.tar.lzo',
 		'.tar.z',
-		'gpx',
-		'md',
-		'pdf'
+		'.gpx',
+		'.md',
+		'.pdf'
 	];
 
 	export let initialLatLng: { lat: number; lng: number } | null = null; // Used to pass the location from the map selection to the modal