diff --git a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/PerlClientCodegen.java b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/PerlClientCodegen.java
index 43abf9f1ce5..ddbd6c7e217 100644
--- a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/PerlClientCodegen.java
+++ b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/PerlClientCodegen.java
@@ -4,10 +4,11 @@ import io.swagger.codegen.CodegenConfig;
 import io.swagger.codegen.CodegenType;
 import io.swagger.codegen.DefaultCodegen;
 import io.swagger.codegen.SupportingFile;
+import io.swagger.codegen.CodegenConstants;
+import io.swagger.codegen.CliOption;
 import io.swagger.models.properties.ArrayProperty;
 import io.swagger.models.properties.MapProperty;
 import io.swagger.models.properties.Property;
-import io.swagger.codegen.CliOption;
 
 import java.io.File;
 import java.util.Arrays;
diff --git a/modules/swagger-codegen/src/test/java/io/swagger/codegen/options/PerlClientOptionsProvider.java b/modules/swagger-codegen/src/test/java/io/swagger/codegen/options/PerlClientOptionsProvider.java
index 5bf55f4d160..5ffe04bff2b 100644
--- a/modules/swagger-codegen/src/test/java/io/swagger/codegen/options/PerlClientOptionsProvider.java
+++ b/modules/swagger-codegen/src/test/java/io/swagger/codegen/options/PerlClientOptionsProvider.java
@@ -1,5 +1,7 @@
 package io.swagger.codegen.options;
 
+import io.swagger.codegen.CodegenConstants;
+
 import io.swagger.codegen.languages.PerlClientCodegen;
 
 import com.google.common.collect.ImmutableMap;
@@ -20,6 +22,8 @@ public class PerlClientOptionsProvider implements OptionsProvider {
         ImmutableMap.Builder<String, String> builder = new ImmutableMap.Builder<String, String>();
         return builder.put(PerlClientCodegen.MODULE_NAME, MODULE_NAME_VALUE)
                 .put(PerlClientCodegen.MODULE_VERSION, MODULE_VERSION_VALUE)
+                .put(CodegenConstants.SORT_PARAMS_BY_REQUIRED_FLAG, "true")
+                .put(CodegenConstants.ENSURE_UNIQUE_PARAMS, "true")
                 .build();
     }