diff --git a/modules/openapi-generator/src/main/resources/Javascript/ApiClient.mustache b/modules/openapi-generator/src/main/resources/Javascript/ApiClient.mustache
index f4f2024f4c6..3c1751b70a5 100644
--- a/modules/openapi-generator/src/main/resources/Javascript/ApiClient.mustache
+++ b/modules/openapi-generator/src/main/resources/Javascript/ApiClient.mustache
@@ -163,7 +163,7 @@
     }
 
     var _this = this;
-    url = url.replace(/\{([\w-]+)\}/g, function(fullMatch, key) {
+    url = url.replace(/\{([\w-\.]+)\}/g, function(fullMatch, key) {
       var value;
       if (pathParams.hasOwnProperty(key)) {
         value = _this.paramToString(pathParams[key]);
diff --git a/modules/openapi-generator/src/main/resources/Javascript/es6/ApiClient.mustache b/modules/openapi-generator/src/main/resources/Javascript/es6/ApiClient.mustache
index 91728cd6ea9..c356fd6f45e 100644
--- a/modules/openapi-generator/src/main/resources/Javascript/es6/ApiClient.mustache
+++ b/modules/openapi-generator/src/main/resources/Javascript/es6/ApiClient.mustache
@@ -153,7 +153,7 @@ class ApiClient {
             url = apiBasePath + path;
         }
 
-        url = url.replace(/\{([\w-]+)\}/g, (fullMatch, key) => {
+        url = url.replace(/\{([\w-\.]+)\}/g, (fullMatch, key) => {
             var value;
             if (pathParams.hasOwnProperty(key)) {
                 value = this.paramToString(pathParams[key]);
diff --git a/samples/client/petstore/javascript-es6/src/ApiClient.js b/samples/client/petstore/javascript-es6/src/ApiClient.js
index 947a9e05217..4a73394c094 100644
--- a/samples/client/petstore/javascript-es6/src/ApiClient.js
+++ b/samples/client/petstore/javascript-es6/src/ApiClient.js
@@ -152,7 +152,7 @@ class ApiClient {
             url = apiBasePath + path;
         }
 
-        url = url.replace(/\{([\w-]+)\}/g, (fullMatch, key) => {
+        url = url.replace(/\{([\w-\.]+)\}/g, (fullMatch, key) => {
             var value;
             if (pathParams.hasOwnProperty(key)) {
                 value = this.paramToString(pathParams[key]);
diff --git a/samples/client/petstore/javascript-promise-es6/src/ApiClient.js b/samples/client/petstore/javascript-promise-es6/src/ApiClient.js
index dbf723afbf0..d5d9e1a7230 100644
--- a/samples/client/petstore/javascript-promise-es6/src/ApiClient.js
+++ b/samples/client/petstore/javascript-promise-es6/src/ApiClient.js
@@ -152,7 +152,7 @@ class ApiClient {
             url = apiBasePath + path;
         }
 
-        url = url.replace(/\{([\w-]+)\}/g, (fullMatch, key) => {
+        url = url.replace(/\{([\w-\.]+)\}/g, (fullMatch, key) => {
             var value;
             if (pathParams.hasOwnProperty(key)) {
                 value = this.paramToString(pathParams[key]);