diff --git a/actions/mediawiki b/actions/mediawiki
index 65d24de21..6ed70b321 100755
--- a/actions/mediawiki
+++ b/actions/mediawiki
@@ -88,6 +88,7 @@ def subcommand_setup(_):
     _disable_public_registrations()
     _disable_anonymous_editing()
     _change_logo()
+    _enable_file_uploads()
 
 
 def _disable_public_registrations():
@@ -119,6 +120,20 @@ def _change_logo():
             file_handle.write(line)
 
 
+def _enable_file_uploads():
+    """Enable file uploads in mediawiki"""
+    with open(CONF_FILE, 'r') as conf_file:
+        lines = conf_file.readlines()
+    with open(CONF_FILE, 'w') as conf_file:
+        for line in lines:
+            if line.startswith("$wgEnableUploads"):
+                words = line.split()
+                words[-1] = 'true;'
+                conf_file.write(" ".join(words) + '\n')
+            else:
+                conf_file.write(line)
+
+
 def subcommand_change_password(arguments):
     """Change the password for a given user"""
     new_password = ''.join(sys.stdin)
diff --git a/plinth/modules/mediawiki/__init__.py b/plinth/modules/mediawiki/__init__.py
index 7b961d2b6..b68edf30d 100644
--- a/plinth/modules/mediawiki/__init__.py
+++ b/plinth/modules/mediawiki/__init__.py
@@ -26,7 +26,7 @@ from plinth.menu import main_menu
 
 from .manifest import clients
 
-version = 2
+version = 3
 
 managed_packages = ['mediawiki', 'imagemagick', 'php-sqlite3']