diff --git a/pytorch_lightning/utilities/enums.py b/pytorch_lightning/utilities/enums.py
index b3041a72cac3b..de2a0af661c2a 100644
--- a/pytorch_lightning/utilities/enums.py
+++ b/pytorch_lightning/utilities/enums.py
@@ -147,7 +147,7 @@ def is_interactive_compatible(self) -> bool:
     def deprecate(self) -> None:
         rank_zero_deprecation(
             "`DistributedType` Enum has been deprecated in v1.6 and will be removed in v1.8."
-            " Use the string value `{self.value!r}` instead."
+            f" Use the string value `{self.value!r}` instead."
         )
 
 
@@ -167,7 +167,7 @@ class DeviceType(_DeprecatedEnum):
     def deprecate(self) -> None:
         rank_zero_deprecation(
             "`DeviceType` Enum has been deprecated in v1.6 and will be removed in v1.8."
-            " Use the string value `{self.value!r}` instead."
+            f" Use the string value `{self.value!r}` instead."
         )