diff --git a/crates/oxc_formatter/src/utils/conditional.rs b/crates/oxc_formatter/src/utils/conditional.rs
index 58f6e1ea49ee4..4224edede7adc 100644
--- a/crates/oxc_formatter/src/utils/conditional.rs
+++ b/crates/oxc_formatter/src/utils/conditional.rs
@@ -464,10 +464,10 @@ impl<'a> FormatConditionalLike<'a, '_> {
 
         let format_alternative = format_with(|f| match self.conditional {
             ConditionalLike::ConditionalExpression(conditional) => {
-                write!(f, [conditional.alternate()])
+                write!(f, [FormatNodeWithoutTrailingComments(conditional.alternate())])
             }
             ConditionalLike::TSConditionalType(conditional) => {
-                write!(f, [conditional.false_type()])
+                write!(f, [FormatNodeWithoutTrailingComments(conditional.false_type())])
             }
         });
         let format_alternative = format_with(|f| {
diff --git a/crates/oxc_formatter/tests/fixtures/js/conditional/argument.js b/crates/oxc_formatter/tests/fixtures/js/conditional/argument.js
new file mode 100644
index 0000000000000..7f7951edc66b1
--- /dev/null
+++ b/crates/oxc_formatter/tests/fixtures/js/conditional/argument.js
@@ -0,0 +1,9 @@
+cb(
+  overflowing ? 'absolute top-0' : 'relative', // sidebar custom changes - to contain the absolute sidebar below
+  parameter
+)
+
+cb(
+  overflowing ? 'absolute top-0' : 'relative' /* */, // sidebar custom changes - to contain the absolute sidebar below
+  parameter
+)
\ No newline at end of file
diff --git a/crates/oxc_formatter/tests/fixtures/js/conditional/argument.js.snap b/crates/oxc_formatter/tests/fixtures/js/conditional/argument.js.snap
new file mode 100644
index 0000000000000..6a638c3d9a60a
--- /dev/null
+++ b/crates/oxc_formatter/tests/fixtures/js/conditional/argument.js.snap
@@ -0,0 +1,25 @@
+---
+source: crates/oxc_formatter/tests/fixtures/mod.rs
+---
+==================== Input ====================
+cb(
+  overflowing ? 'absolute top-0' : 'relative', // sidebar custom changes - to contain the absolute sidebar below
+  parameter
+)
+
+cb(
+  overflowing ? 'absolute top-0' : 'relative' /* */, // sidebar custom changes - to contain the absolute sidebar below
+  parameter
+)
+==================== Output ====================
+cb(
+  overflowing ? "absolute top-0" : "relative", // sidebar custom changes - to contain the absolute sidebar below
+  parameter,
+);
+
+cb(
+  overflowing ? "absolute top-0" : "relative" /* */, // sidebar custom changes - to contain the absolute sidebar below
+  parameter,
+);
+
+===================== End =====================