diff --git a/komga/src/main/kotlin/org/gotson/komga/infrastructure/xml/MappingJackson2XmlHttpMessageConverterConfiguration.kt b/komga/src/main/kotlin/org/gotson/komga/infrastructure/xml/MappingJackson2XmlHttpMessageConverterConfiguration.kt
new file mode 100644
index 000000000..9d53f781f
--- /dev/null
+++ b/komga/src/main/kotlin/org/gotson/komga/infrastructure/xml/MappingJackson2XmlHttpMessageConverterConfiguration.kt
@@ -0,0 +1,17 @@
+package org.gotson.komga.infrastructure.xml
+
+import org.gotson.komga.interfaces.api.opds.v1.dto.prefixToNamespace
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder
+import org.springframework.http.converter.xml.MappingJackson2XmlHttpMessageConverter
+
+@Configuration
+class MappingJackson2XmlHttpMessageConverterConfiguration {
+
+  @Bean
+  fun mappingJackson2XmlHttpMessageConverter(builder: Jackson2ObjectMapperBuilder) =
+    MappingJackson2XmlHttpMessageConverter(
+      builder.createXmlMapper(true).factory(NamespaceXmlFactory(prefixToNamespace = prefixToNamespace)).build(),
+    )
+}
diff --git a/komga/src/main/kotlin/org/gotson/komga/infrastructure/xml/NamespaceXmlFactory.kt b/komga/src/main/kotlin/org/gotson/komga/infrastructure/xml/NamespaceXmlFactory.kt
new file mode 100644
index 000000000..ce0ea2a73
--- /dev/null
+++ b/komga/src/main/kotlin/org/gotson/komga/infrastructure/xml/NamespaceXmlFactory.kt
@@ -0,0 +1,46 @@
+package org.gotson.komga.infrastructure.xml
+
+import com.fasterxml.jackson.core.JsonEncoding
+import com.fasterxml.jackson.core.io.IOContext
+import com.fasterxml.jackson.dataformat.xml.XmlFactory
+import com.fasterxml.jackson.dataformat.xml.ser.ToXmlGenerator
+import com.fasterxml.jackson.dataformat.xml.util.StaxUtil
+import java.io.File
+import java.io.OutputStream
+import java.io.Writer
+import javax.xml.stream.XMLStreamException
+import javax.xml.stream.XMLStreamWriter
+
+class NamespaceXmlFactory(
+  private val defaultNamespace: String? = null,
+  private val prefixToNamespace: Map<String, String> = emptyMap(),
+) : XmlFactory() {
+
+  override fun _createXmlWriter(ctxt: IOContext?, w: Writer?): XMLStreamWriter =
+    super._createXmlWriter(ctxt, w).apply { configure() }
+
+  override fun createGenerator(out: OutputStream?, enc: JsonEncoding?): ToXmlGenerator =
+    super.createGenerator(out, enc).apply { staxWriter.configure() }
+
+  override fun createGenerator(out: OutputStream?): ToXmlGenerator =
+    super.createGenerator(out).apply { staxWriter.configure() }
+
+  override fun createGenerator(out: Writer?): ToXmlGenerator =
+    super.createGenerator(out).apply { staxWriter.configure() }
+
+  override fun createGenerator(f: File?, enc: JsonEncoding?): ToXmlGenerator =
+    super.createGenerator(f, enc).apply { staxWriter.configure() }
+
+  override fun createGenerator(sw: XMLStreamWriter?): ToXmlGenerator =
+    super.createGenerator(sw).apply { staxWriter.configure() }
+
+  private fun XMLStreamWriter.configure() =
+    try {
+      defaultNamespace?.let { this.setDefaultNamespace(it) }
+      for ((key, value) in prefixToNamespace) {
+        this.setPrefix(key, value)
+      }
+    } catch (e: XMLStreamException) {
+      StaxUtil.throwAsGenerationException(e, null)
+    }
+}
diff --git a/komga/src/main/kotlin/org/gotson/komga/interfaces/api/opds/v1/dto/XmlNamespaces.kt b/komga/src/main/kotlin/org/gotson/komga/interfaces/api/opds/v1/dto/XmlNamespaces.kt
index 146fe03de..7aa1558c9 100644
--- a/komga/src/main/kotlin/org/gotson/komga/interfaces/api/opds/v1/dto/XmlNamespaces.kt
+++ b/komga/src/main/kotlin/org/gotson/komga/interfaces/api/opds/v1/dto/XmlNamespaces.kt
@@ -3,3 +3,7 @@ package org.gotson.komga.interfaces.api.opds.v1.dto
 const val ATOM = "http://www.w3.org/2005/Atom"
 const val OPDS_PSE = "http://vaemendis.net/opds-pse/ns"
 const val OPENSEARCH = "http://a9.com/-/spec/opensearch/1.1/"
+
+val prefixToNamespace = mapOf(
+  "pse" to OPDS_PSE,
+)