diff --git a/crates/ruff_cli/resources/test/fixtures/unformatted.ipynb b/crates/ruff_cli/resources/test/fixtures/unformatted.ipynb
index 7b8ebf87a06d9..c13f24a142928 100644
--- a/crates/ruff_cli/resources/test/fixtures/unformatted.ipynb
+++ b/crates/ruff_cli/resources/test/fixtures/unformatted.ipynb
@@ -11,6 +11,41 @@
     "maths = (numpy.arange(100)**2).sum()\n",
     "stats= numpy.asarray([1,2,3,4]).median()"
    ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "83a0b1b8",
+   "metadata": {},
+   "source": [
+    "A markdown cell"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "ae12f012",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# A cell with IPython escape command\n",
+    "def some_function(foo, bar):\n",
+    "    pass\n",
+    "%matplotlib inline"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "10f3bbf9",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "foo = %pwd\n",
+    "def some_function(foo,bar,):\n",
+    "    # Another cell with IPython escape command\n",
+    "    foo = %pwd\n",
+    "    print(foo)"
+   ]
   }
  ],
  "metadata": {
diff --git a/crates/ruff_cli/tests/format.rs b/crates/ruff_cli/tests/format.rs
index 84974d9f0bf27..bfcb69ba0f679 100644
--- a/crates/ruff_cli/tests/format.rs
+++ b/crates/ruff_cli/tests/format.rs
@@ -511,13 +511,30 @@ fn test_diff() {
         ----- stdout -----
         --- resources/test/fixtures/unformatted.ipynb
         +++ resources/test/fixtures/unformatted.ipynb
-        @@ -1,3 +1,4 @@
+        @@ -1,12 +1,20 @@
          import numpy
         -maths = (numpy.arange(100)**2).sum()
         -stats= numpy.asarray([1,2,3,4]).median()
         +
         +maths = (numpy.arange(100) ** 2).sum()
         +stats = numpy.asarray([1, 2, 3, 4]).median()
+         # A cell with IPython escape command
+         def some_function(foo, bar):
+             pass
+        +
+        +
+         %matplotlib inline
+         foo = %pwd
+        -def some_function(foo,bar,):
+        +
+        +
+        +def some_function(
+        +    foo,
+        +    bar,
+        +):
+             # Another cell with IPython escape command
+             foo = %pwd
+             print(foo)
         --- resources/test/fixtures/unformatted.py
         +++ resources/test/fixtures/unformatted.py
         @@ -1,3 +1,3 @@
diff --git a/crates/ruff_python_formatter/src/expression/expr_ipy_escape_command.rs b/crates/ruff_python_formatter/src/expression/expr_ipy_escape_command.rs
index 7e084055ac7a7..c60fc633927c1 100644
--- a/crates/ruff_python_formatter/src/expression/expr_ipy_escape_command.rs
+++ b/crates/ruff_python_formatter/src/expression/expr_ipy_escape_command.rs
@@ -1,6 +1,7 @@
 use ruff_python_ast::ExprIpyEscapeCommand;
 use ruff_text_size::Ranged;
 
+use crate::expression::parentheses::{NeedsParentheses, OptionalParentheses};
 use crate::prelude::*;
 
 #[derive(Default)]
@@ -11,3 +12,13 @@ impl FormatNodeRule<ExprIpyEscapeCommand> for FormatExprIpyEscapeCommand {
         source_text_slice(item.range()).fmt(f)
     }
 }
+
+impl NeedsParentheses for ExprIpyEscapeCommand {
+    fn needs_parentheses(
+        &self,
+        _parent: ruff_python_ast::AnyNodeRef,
+        _context: &PyFormatContext,
+    ) -> OptionalParentheses {
+        OptionalParentheses::Never
+    }
+}
diff --git a/crates/ruff_python_formatter/src/expression/mod.rs b/crates/ruff_python_formatter/src/expression/mod.rs
index d33f05eadf6a8..48ced2960c9d1 100644
--- a/crates/ruff_python_formatter/src/expression/mod.rs
+++ b/crates/ruff_python_formatter/src/expression/mod.rs
@@ -476,7 +476,7 @@ impl NeedsParentheses for Expr {
             Expr::List(expr) => expr.needs_parentheses(parent, context),
             Expr::Tuple(expr) => expr.needs_parentheses(parent, context),
             Expr::Slice(expr) => expr.needs_parentheses(parent, context),
-            Expr::IpyEscapeCommand(_) => todo!(),
+            Expr::IpyEscapeCommand(expr) => expr.needs_parentheses(parent, context),
         }
     }
 }
@@ -718,8 +718,8 @@ impl<'input> CanOmitOptionalParenthesesVisitor<'input> {
             | Expr::Constant(_)
             | Expr::Starred(_)
             | Expr::Name(_)
-            | Expr::Slice(_) => {}
-            Expr::IpyEscapeCommand(_) => todo!(),
+            | Expr::Slice(_)
+            | Expr::IpyEscapeCommand(_) => {}
         };
 
         walk_expr(self, expr);