diff --git a/Control/AthenaConfiguration/python/ComponentAccumulator.py b/Control/AthenaConfiguration/python/ComponentAccumulator.py
index 67cfe3ab57014d02e5fa1eafb6780b226cf281af..a778660b9de9b38643f31a773fee4799c653e3e3 100644
--- a/Control/AthenaConfiguration/python/ComponentAccumulator.py
+++ b/Control/AthenaConfiguration/python/ComponentAccumulator.py
@@ -449,7 +449,7 @@ class ComponentAccumulator(object):
             raise TypeError("Attempt to add wrong type: {} as service".format(type( newSvc ).__name__))
 
         if newSvc.__component_type__ != "Service":
-            raise TypeError("Attempt to add wrong type: {} as service".fomrat(newSvc.__component_type__))
+            raise TypeError("Attempt to add wrong type: {} as service".format(newSvc.__component_type__))
             pass
 
         context = createContextForDeduplication("Merging with existing Service", newSvc.name, self._componentsContext) # noqa : F841