diff --git a/modules/openapi-generator-maven-plugin/README.md b/modules/openapi-generator-maven-plugin/README.md
index 3f267b41f7e..2d02194aab3 100644
--- a/modules/openapi-generator-maven-plugin/README.md
+++ b/modules/openapi-generator-maven-plugin/README.md
@@ -91,6 +91,7 @@ mvn clean compile
 | `reservedWordsMappings` |  `openapi.generator.maven.plugin.reservedWordsMappings` | specifies how a reserved name should be escaped to. Otherwise, the default `_<name>` is used. For example `id=identifier`. You can also have multiple occurrences of this option
 | `skipIfSpecIsUnchanged` |  `codegen.skipIfSpecIsUnchanged` | Skip the execution if the source file is older than the output folder (`false` by default. Can also be set globally through the `codegen.skipIfSpecIsUnchanged` property)
 | `engine` | `openapi.generator.maven.plugin.engine` | The name of templating engine to use, "mustache" (default) or "handlebars" (beta)
+| `httpUserAgent` | `openapi.generator.maven.plugin.httpUserAgent` | Sets custom User-Agent header value
 
 
 ### Custom Generator
diff --git a/modules/openapi-generator-maven-plugin/src/main/java/org/openapitools/codegen/plugin/CodeGenMojo.java b/modules/openapi-generator-maven-plugin/src/main/java/org/openapitools/codegen/plugin/CodeGenMojo.java
index 552a44f2563..3cbb6093cc6 100644
--- a/modules/openapi-generator-maven-plugin/src/main/java/org/openapitools/codegen/plugin/CodeGenMojo.java
+++ b/modules/openapi-generator-maven-plugin/src/main/java/org/openapitools/codegen/plugin/CodeGenMojo.java
@@ -206,6 +206,12 @@ public class CodeGenMojo extends AbstractMojo {
     @Parameter(name = "ignoreFileOverride", property = "openapi.generator.maven.plugin.ignoreFileOverride", required = false)
     private String ignoreFileOverride;
 
+    /**
+     * Sets custom User-Agent header value
+     */
+    @Parameter(name = "httpUserAgent", property = "openapi.generator.maven.plugin.httpUserAgent", required = false)
+    private String httpUserAgent;
+
     /**
      * To remove operationId prefix (e.g. user_getName => getName)
      */
@@ -462,6 +468,10 @@ public class CodeGenMojo extends AbstractMojo {
                 configurator.setIgnoreFileOverride(ignoreFileOverride);
             }
 
+            if (isNotEmpty(httpUserAgent)) {
+                configurator.setHttpUserAgent(httpUserAgent);
+            }
+
             if (skipValidateSpec != null) {
                 configurator.setValidateSpec(!skipValidateSpec);
             }