diff --git a/modules/openapi-generator/src/main/resources/scala-akka-client/requests.mustache b/modules/openapi-generator/src/main/resources/scala-akka-client/requests.mustache
index 6dd3ab7d977..727d88f1818 100644
--- a/modules/openapi-generator/src/main/resources/scala-akka-client/requests.mustache
+++ b/modules/openapi-generator/src/main/resources/scala-akka-client/requests.mustache
@@ -3,6 +3,7 @@ package {{invokerPackage}}
 
 import java.io.File
 import java.net.URLEncoder
+import java.util.UUID
 import java.time.OffsetDateTime
 
 import scala.util.Try
@@ -181,6 +182,7 @@ object ParametersMap {
       case Some(opt) => formattedParams(name, opt)
       case s: Seq[Any] => formattedParams(name, ArrayValues(s))
       case v: String => Seq((name, urlEncode(v)))
+      case v: UUID => formattedParams(name, v.toString)
       case NumericValue(v) => Seq((name, urlEncode(v)))
       case f: File => Seq((name, f))
       case m: ApiModel => Seq((name, m))
diff --git a/modules/openapi-generator/src/main/resources/scala-akka-client/serializers.mustache b/modules/openapi-generator/src/main/resources/scala-akka-client/serializers.mustache
index 6fcbaa2c35e..e66999529d9 100644
--- a/modules/openapi-generator/src/main/resources/scala-akka-client/serializers.mustache
+++ b/modules/openapi-generator/src/main/resources/scala-akka-client/serializers.mustache
@@ -9,6 +9,7 @@ import org.joda.time.format.ISODateTimeFormat
 import org.joda.time.{LocalDate, DateTime}
 {{/joda}}
 import org.json4s.{Serializer, CustomSerializer, JNull}
+import org.json4s.ext.JavaTypesSerializers
 import org.json4s.JsonAST.JString
 
 import scala.util.Try
@@ -47,6 +48,6 @@ object Serializers {
   }))
 {{/joda}}
 
- def all: Seq[Serializer[_]] = Seq[Serializer[_]]() :+ DateTimeSerializer :+ LocalDateSerializer
+ def all: Seq[Serializer[_]] = JavaTypesSerializers.all :+ DateTimeSerializer :+ LocalDateSerializer
 
-}
\ No newline at end of file
+}
diff --git a/samples/client/petstore/scala-akka/src/main/scala/org/openapitools/client/core/Serializers.scala b/samples/client/petstore/scala-akka/src/main/scala/org/openapitools/client/core/Serializers.scala
index 93d491af589..a569d56b498 100644
--- a/samples/client/petstore/scala-akka/src/main/scala/org/openapitools/client/core/Serializers.scala
+++ b/samples/client/petstore/scala-akka/src/main/scala/org/openapitools/client/core/Serializers.scala
@@ -3,6 +3,7 @@ package org.openapitools.client.core
 import java.time.{LocalDate, LocalDateTime, OffsetDateTime, ZoneId}
 import java.time.format.DateTimeFormatter
 import org.json4s.{Serializer, CustomSerializer, JNull}
+import org.json4s.ext.JavaTypesSerializers
 import org.json4s.JsonAST.JString
 
 import scala.util.Try
@@ -25,6 +26,6 @@ object Serializers {
       JString(d.format(DateTimeFormatter.ISO_LOCAL_DATE))
   }))
 
- def all: Seq[Serializer[_]] = Seq[Serializer[_]]() :+ DateTimeSerializer :+ LocalDateSerializer
+ def all: Seq[Serializer[_]] = JavaTypesSerializers.all :+ DateTimeSerializer :+ LocalDateSerializer
 
-}
\ No newline at end of file
+}
diff --git a/samples/client/petstore/scala-akka/src/main/scala/org/openapitools/client/core/requests.scala b/samples/client/petstore/scala-akka/src/main/scala/org/openapitools/client/core/requests.scala
index 15b09453a97..f26a30cb278 100644
--- a/samples/client/petstore/scala-akka/src/main/scala/org/openapitools/client/core/requests.scala
+++ b/samples/client/petstore/scala-akka/src/main/scala/org/openapitools/client/core/requests.scala
@@ -13,6 +13,7 @@ package org.openapitools.client.core
 
 import java.io.File
 import java.net.URLEncoder
+import java.util.UUID
 import java.time.OffsetDateTime
 
 import scala.util.Try
@@ -191,6 +192,7 @@ object ParametersMap {
       case Some(opt) => formattedParams(name, opt)
       case s: Seq[Any] => formattedParams(name, ArrayValues(s))
       case v: String => Seq((name, urlEncode(v)))
+      case v: UUID => formattedParams(name, v.toString)
       case NumericValue(v) => Seq((name, urlEncode(v)))
       case f: File => Seq((name, f))
       case m: ApiModel => Seq((name, m))