diff --git a/PyFunceble/helpers/hash.py b/PyFunceble/helpers/hash.py
index 24c2f602..722f3013 100644
--- a/PyFunceble/helpers/hash.py
+++ b/PyFunceble/helpers/hash.py
@@ -66,7 +66,7 @@ class HashHelper:
     :raise ValueError: When the given algo is not known.
     """
 
-    _algo: str = "SHA512_224"
+    _algo: str = "sha512_224"
 
     def __init__(self, algo: Optional[str] = None):
         if algo is not None:
diff --git a/tests/helpers/test_hash.py b/tests/helpers/test_hash.py
index 7d00fc3f..c344bc4c 100644
--- a/tests/helpers/test_hash.py
+++ b/tests/helpers/test_hash.py
@@ -91,7 +91,7 @@ def test_set_algo_return(self) -> None:
         work with.
         """
 
-        given = "SHA512_224"
+        given = "sha512_224"
 
         hash_helper = HashHelper()
         actual = hash_helper.set_algo(given)
@@ -103,8 +103,8 @@ def test_set_algo(self) -> None:
         Tests the method which let us set the algorithm to work with.
         """
 
-        given = "SHA512_224"
-        expected = "SHA512_224"
+        given = "sha512_224"
+        expected = "sha512_224"
 
         hash_helper = HashHelper()
         hash_helper.set_algo(given)