diff --git a/server/szurubooru/rest/app.py b/server/szurubooru/rest/app.py
index b4d23d42..391d297f 100644
--- a/server/szurubooru/rest/app.py
+++ b/server/szurubooru/rest/app.py
@@ -93,6 +93,9 @@ def application(env, start_response):
                     hook(ctx)
                 try:
                     response = handler(ctx, match.groupdict())
+                except:
+                    ctx.session.rollback()
+                    raise
                 finally:
                     for hook in middleware.post_hooks:
                         hook(ctx)