Merge "Add a lacking message format letter 's'"
diff --git a/tempest/exceptions.py b/tempest/exceptions.py
index 2e2c5ec..4eb1cea 100644
--- a/tempest/exceptions.py
+++ b/tempest/exceptions.py
@@ -118,7 +118,7 @@
 
 
 class StackResourceBuildErrorException(TempestException):
-    message = ("Resource %(resource_name) in stack %(stack_identifier)s is "
+    message = ("Resource %(resource_name)s in stack %(stack_identifier)s is "
                "in %(resource_status)s status due to "
                "'%(resource_status_reason)s'")