diff --git a/api/problem_details.py b/api/problem_details.py
index 66bff6c8f..e8d5bf4b5 100644
--- a/api/problem_details.py
+++ b/api/problem_details.py
@@ -58,8 +58,8 @@
 
 # E-kirjasto
 NO_COPIES_WHEN_RESERVED = pd(
-    "http://librarysimplified.org/terms/problem/no-available-license",
-    403,
+    "http://librarysimplified.org/terms/problem/cannot-issue-loan",
+    502,
     _("No available license."),
     _("All copies of this book are loaned out after all. You are still next in line."),
 )