diff --git a/freqtrade/misc.py b/freqtrade/misc.py
index 23e2779a0..7c56231c3 100644
--- a/freqtrade/misc.py
+++ b/freqtrade/misc.py
@@ -128,7 +128,10 @@ def round_dict(d, n):
     return {k: (round(v, n) if isinstance(v, float) else v) for k, v in d.items()}
 
 
-def safe_value_fallback(obj: dict, key1: str, key2: Optional[str] = None, default_value=None):
+DictMap = Union[Dict[str, Any], Mapping[str, Any]]
+
+
+def safe_value_fallback(obj: DictMap, key1: str, key2: Optional[str] = None, default_value=None):
     """
     Search a value in obj, return this if it's not None.
     Then search key2 in obj - return that if it's not none - then use default_value.
@@ -142,10 +145,7 @@ def safe_value_fallback(obj: dict, key1: str, key2: Optional[str] = None, defaul
     return default_value
 
 
-dictMap = Union[Dict[str, Any], Mapping[str, Any]]
-
-
-def safe_value_fallback2(dict1: dictMap, dict2: dictMap, key1: str, key2: str, default_value=None):
+def safe_value_fallback2(dict1: DictMap, dict2: DictMap, key1: str, key2: str, default_value=None):
     """
     Search a value in dict1, return this if it's not None.
     Fall back to dict2 - return key2 from dict2 if it's not None.