diff --git a/mistral/db/v2/sqlalchemy/api.py b/mistral/db/v2/sqlalchemy/api.py
index 78201396b..5d39579d3 100644
--- a/mistral/db/v2/sqlalchemy/api.py
+++ b/mistral/db/v2/sqlalchemy/api.py
@@ -180,7 +180,7 @@ def update_on_match(id, specimen, values, session=None):
     except oslo_sqlalchemy.update_match.NoRowsMatched:
         LOG.info(
             "Can't change state of persistent object "
-            "because it has already been changed. [model_class=%, id=%s, "
+            "because it has already been changed. [model_class=%s, id=%s, "
             "specimen=%s, values=%s]",
             model_class, id, specimen, values
         )
diff --git a/releasenotes/notes/fix-regression-when-logging-58faa35f02cefb34.yaml b/releasenotes/notes/fix-regression-when-logging-58faa35f02cefb34.yaml
new file mode 100644
index 000000000..c9d48ab96
--- /dev/null
+++ b/releasenotes/notes/fix-regression-when-logging-58faa35f02cefb34.yaml
@@ -0,0 +1,6 @@
+---
+fixes:
+  - |
+    A regression was introduced that caused an error when logging a specific
+    message. The string formatting was broken, which caused the logging to
+    fail.