diff --git a/IPython/core/prefilter.py b/IPython/core/prefilter.py
index a29df0c..fc7b1c3 100644
--- a/IPython/core/prefilter.py
+++ b/IPython/core/prefilter.py
@@ -512,8 +512,10 @@ class AutocallChecker(PrefilterChecker):
             callable(oinfo.obj)
             and (not self.exclude_regexp.match(line_info.the_rest))
             and self.function_name_regexp.match(line_info.ifun)
-            and line_info.raw_the_rest.startswith(" ")
-            or not line_info.raw_the_rest.strip()
+            and (
+                line_info.raw_the_rest.startswith(" ")
+                or not line_info.raw_the_rest.strip()
+            )
         ):
             return self.prefilter_manager.get_handler_by_name("auto")
         else:
diff --git a/IPython/core/tests/test_prefilter.py b/IPython/core/tests/test_prefilter.py
index 999cd43..379a530 100644
--- a/IPython/core/tests/test_prefilter.py
+++ b/IPython/core/tests/test_prefilter.py
@@ -137,3 +137,13 @@ def test_autocall_should_support_unicode():
     finally:
         ip.run_line_magic("autocall", "0")
         del ip.user_ns["π"]
+
+
+def test_autocall_regression_gh_14513():
+    ip.run_line_magic("autocall", "2")
+    ip.user_ns["foo"] = dict()
+    try:
+        assert ip.prefilter("foo") == "foo"
+    finally:
+        ip.run_line_magic("autocall", "0")
+        del ip.user_ns["foo"]