diff --git a/roles/copr/backend/files/provision/provision_builder_tasks.yml b/roles/copr/backend/files/provision/provision_builder_tasks.yml
index 469f615c7c..433e820fb8 100644
--- a/roles/copr/backend/files/provision/provision_builder_tasks.yml
+++ b/roles/copr/backend/files/provision/provision_builder_tasks.yml
@@ -243,7 +243,7 @@
   assert:
     that:
       - ansible_memory_mb.swap.free + ansible_memory_mb.real.free >= 1024 * 140
-    fail_msg: "Not enough memory+swap, the builder is unusable"
+    fail_msg: "Not enough memory+swap, the builder is unusable: {{ ansible_memory_mb.swap.free }} MB SWAP and {{ ansible_memory_mb.real.free }} MB RAM"
     success_msg: "Builder has enough memory/swap!"
   when:
   - prepare_base_image is not defined