diff --git a/astroid/brain/brain_builtin_inference.py b/astroid/brain/brain_builtin_inference.py
index 68445e731c..00253f243b 100644
--- a/astroid/brain/brain_builtin_inference.py
+++ b/astroid/brain/brain_builtin_inference.py
@@ -946,7 +946,7 @@ def _infer_str_format_call(
 
     try:
         formatted_string = format_template.format(*pos_values, **keyword_values)
-    except IndexError:
+    except (IndexError, KeyError):
         # If there is an IndexError there are too few arguments to interpolate
         return iter([util.Uninferable])
 
diff --git a/tests/unittest_brain_builtin.py b/tests/unittest_brain_builtin.py
index a659c4fdf2..54e7d2190d 100644
--- a/tests/unittest_brain_builtin.py
+++ b/tests/unittest_brain_builtin.py
@@ -93,6 +93,9 @@ def test_string_format(self, format_string: str) -> None:
             "My name is {}, I'm {}".format(Unknown, 12)
             """,
             """"I am {}".format()""",
+            """
+            "My name is {fname}, I'm {age}".format(fsname = "Daniel", age = 12)
+            """,
         ],
     )
     def test_string_format_uninferable(self, format_string: str) -> None: