diff --git a/slither/utils/function.py b/slither/utils/function.py
index 1c3741cc7..34e6f221b 100644
--- a/slither/utils/function.py
+++ b/slither/utils/function.py
@@ -9,6 +9,6 @@ def get_function_id(sig: str) -> int:
     Return:
         (int)
     """
-    hash = keccak.new(digest_bits=256)
-    hash.update(sig.encode("utf-8"))
-    return int("0x" + hash.hexdigest()[:8], 16)
+    digest = keccak.new(digest_bits=256)
+    digest.update(sig.encode("utf-8"))
+    return int("0x" + digest.hexdigest()[:8], 16)