diff --git a/docs/generators/elm.md b/docs/generators/elm.md
index 65044602159f..3300598f0fd4 100644
--- a/docs/generators/elm.md
+++ b/docs/generators/elm.md
@@ -12,6 +12,9 @@ CONFIG OPTIONS for elm
 	elmEnableCustomBasePaths
 	    Enable setting the base path for each request (Default: false)
 
+	elmEnableCustomHeaders
+	    Enable setting custom headers for each request (Default: false)
+
 	elmEnableHttpRequestTrackers
 	    Enable adding a tracker to each http request (Default: false)
 
diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/ElmClientCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/ElmClientCodegen.java
index dc9a64f5baac..f1fd24b6d3e5 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/ElmClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/ElmClientCodegen.java
@@ -65,6 +65,7 @@ public class ElmClientCodegen extends DefaultCodegen implements CodegenConfig {
     private static final String ELM_VERSION = "elmVersion";
     private static final String ELM_PREFIX_CUSTOM_TYPE_VARIANTS = "elmPrefixCustomTypeVariants";
     private static final String ELM_ENABLE_CUSTOM_BASE_PATHS = "elmEnableCustomBasePaths";
+    private static final String ELM_ENABLE_CUSTOM_HEADERS = "elmEnableCustomHeaders";
     private static final String ELM_ENABLE_HTTP_REQUEST_TRACKERS = "elmEnableHttpRequestTrackers";
     private static final String ENCODER = "elmEncoder";
     private static final String DECODER = "elmDecoder";
@@ -173,6 +174,8 @@ public ElmClientCodegen() {
         cliOptions.add(elmPrefixCustomTypeVariants);
         final CliOption elmEnableCustomBasePaths = CliOption.newBoolean(ELM_ENABLE_CUSTOM_BASE_PATHS, "Enable setting the base path for each request");
         cliOptions.add(elmEnableCustomBasePaths);
+        final CliOption elmEnableCustomHeaders = CliOption.newBoolean(ELM_ENABLE_CUSTOM_HEADERS, "Enable setting custom headers for each request");
+        cliOptions.add(elmEnableCustomHeaders);
         final CliOption elmEnableHttpRequestTrackers = CliOption.newBoolean(ELM_ENABLE_HTTP_REQUEST_TRACKERS, "Enable adding a tracker to each http request");
         cliOptions.add(elmEnableHttpRequestTrackers);
     }
@@ -199,6 +202,11 @@ public void processOpts() {
             additionalProperties.put("enableCustomBasePaths", enable);
         }
 
+        if (additionalProperties.containsKey(ELM_ENABLE_CUSTOM_HEADERS)) {
+            final boolean enable = Boolean.TRUE.equals(Boolean.valueOf(additionalProperties.get(ELM_ENABLE_CUSTOM_HEADERS).toString()));
+            additionalProperties.put("enableCustomHeaders", enable);
+        }
+
         if (additionalProperties.containsKey(ELM_ENABLE_HTTP_REQUEST_TRACKERS)) {
             final boolean enable = Boolean.TRUE.equals(Boolean.valueOf(additionalProperties.get(ELM_ENABLE_HTTP_REQUEST_TRACKERS).toString()));
             additionalProperties.put("enableHttpRequestTrackers", enable);
diff --git a/modules/openapi-generator/src/main/resources/elm/api.mustache b/modules/openapi-generator/src/main/resources/elm/api.mustache
index 67e40a0d49ac..a5567482cf44 100644
--- a/modules/openapi-generator/src/main/resources/elm/api.mustache
+++ b/modules/openapi-generator/src/main/resources/elm/api.mustache
@@ -23,6 +23,7 @@ basePath =
 {{operationId}} :
     { onSend : Result Http.Error {{^responses}}(){{/responses}}{{#responses}}{{#-first}}{{^dataType}}(){{/dataType}}{{#isMapContainer}}(Dict.Dict String {{/isMapContainer}}{{#isListContainer}}(List {{/isListContainer}}{{dataType}}{{#isListContainer}}){{/isListContainer}}{{#isMapContainer}}){{/isMapContainer}}{{/-first}}{{/responses}} -> msg
 {{#enableCustomBasePaths}}    , basePath : String{{/enableCustomBasePaths}}
+{{#enableCustomHeaders}}    , headers : List Http.Header{{/enableCustomHeaders}}
 {{#enableHttpRequestTrackers}}    , tracker : Maybe String{{/enableHttpRequestTrackers}}
 {{#bodyParam}}    , body : {{^required}}Maybe {{/required}}{{dataType}}{{/bodyParam}}
 {{#pathParams}}    , {{paramName}} : {{#isListContainer}}List {{/isListContainer}}{{dataType}}{{/pathParams}}
@@ -32,7 +33,7 @@ basePath =
 {{operationId}} params =
     Http.request
         { method = "{{httpMethod}}"
-        , headers = []
+        , headers = {{#enableCustomHeaders}}params.headers{{/enableCustomHeaders}}{{^enableCustomHeaders}}[]{{/enableCustomHeaders}}
         , url = Url.crossOrigin {{#enableCustomBasePaths}}params.{{/enableCustomBasePaths}}basePath
             [{{{path}}}]
             (List.filterMap identity [{{{vendorExtensions.query}}}])