diff --git a/ktor-http/ktor-http-cio/common/src/io/ktor/http/cio/HttpParser.kt b/ktor-http/ktor-http-cio/common/src/io/ktor/http/cio/HttpParser.kt
index 045f3f9a81..0104b15d5d 100644
--- a/ktor-http/ktor-http-cio/common/src/io/ktor/http/cio/HttpParser.kt
+++ b/ktor-http/ktor-http-cio/common/src/io/ktor/http/cio/HttpParser.kt
@@ -1,6 +1,6 @@
 /*
-* Copyright 2014-2021 JetBrains s.r.o and contributors. Use of this source code is governed by the Apache 2.0 license.
-*/
+ * Copyright 2014-2025 JetBrains s.r.o and contributors. Use of this source code is governed by the Apache 2.0 license.
+ */
 
 package io.ktor.http.cio
 
@@ -31,7 +31,7 @@ public suspend fun parseRequest(input: ByteReadChannel): Request? {
 
     try {
         while (true) {
-            if (!input.readUTF8LineTo(builder, HTTP_LINE_LIMIT)) return null
+            if (!input.readUTF8LineTo(builder, HTTP_LINE_LIMIT, LineEndingMode.HttpLineEndings)) return null
             range.end = builder.length
             if (range.start == range.end) continue
 
@@ -66,7 +66,7 @@ public suspend fun parseResponse(input: ByteReadChannel): Response? {
     val range = MutableRange(0, 0)
 
     try {
-        if (!input.readUTF8LineTo(builder, HTTP_LINE_LIMIT)) return null
+        if (!input.readUTF8LineTo(builder, HTTP_LINE_LIMIT, LineEndingMode.HttpLineEndings)) return null
         range.end = builder.length
 
         val version = parseVersion(builder, range)
@@ -106,7 +106,7 @@ internal suspend fun parseHeaders(
 
     try {
         while (true) {
-            if (!input.readUTF8LineTo(builder, HTTP_LINE_LIMIT)) {
+            if (!input.readUTF8LineTo(builder, HTTP_LINE_LIMIT, LineEndingMode.HttpLineEndings)) {
                 headers.release()
                 return null
             }