diff --git a/modules/openapi-generator/src/main/resources/Javascript/partial_model_generic.mustache b/modules/openapi-generator/src/main/resources/Javascript/partial_model_generic.mustache
index 2203cc43150..facd6bf222e 100644
--- a/modules/openapi-generator/src/main/resources/Javascript/partial_model_generic.mustache
+++ b/modules/openapi-generator/src/main/resources/Javascript/partial_model_generic.mustache
@@ -64,7 +64,7 @@ class {{classname}} {{#parent}}{{^parentModel}}{{#vendorExtensions.x-is-array}}e
         {{#-first}}
         // check to make sure all required properties are present in the JSON string
         for (const property of {{classname}}.RequiredProperties) {
-            if (!data[property]) {
+            if (!data.hasOwnProperty(property)) {
                 throw new Error("The required field `" + property + "` is not found in the JSON data: " + JSON.stringify(data));
             }
         }