diff --git a/sqlglot/dialects/duckdb.py b/sqlglot/dialects/duckdb.py
index 3932c11bc..467152fb1 100644
--- a/sqlglot/dialects/duckdb.py
+++ b/sqlglot/dialects/duckdb.py
@@ -549,6 +549,7 @@ class Generator(generator.Generator):
             exp.ReturnsProperty: lambda self, e: "TABLE" if isinstance(e.this, exp.Schema) else "",
             exp.Rand: rename_func("RANDOM"),
             exp.SafeDivide: no_safe_divide_sql,
+            exp.SHA: rename_func("SHA1"),
             exp.SHA2: sha256_sql,
             exp.Split: rename_func("STR_SPLIT"),
             exp.SortArray: _sort_array_sql,
diff --git a/tests/dialects/test_duckdb.py b/tests/dialects/test_duckdb.py
index f6a00547c..883c66728 100644
--- a/tests/dialects/test_duckdb.py
+++ b/tests/dialects/test_duckdb.py
@@ -973,6 +973,15 @@ def test_time(self):
                 "spark": "DATE_FORMAT(x, 'yy-M-ss')",
             },
         )
+
+        self.validate_all(
+            "SHA1(x)",
+            write={
+                "duckdb": "SHA1(x)",
+                "": "SHA(x)",
+            },
+        )
+
         self.validate_all(
             "STRFTIME(x, '%Y-%m-%d %H:%M:%S')",
             write={