diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/TypeScriptAxiosClientCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/TypeScriptAxiosClientCodegen.java
index 8413d92db5b..5b9aba6ab0b 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/TypeScriptAxiosClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/TypeScriptAxiosClientCodegen.java
@@ -226,6 +226,11 @@ public class TypeScriptAxiosClientCodegen extends AbstractTypeScriptClientCodege
         for (ModelMap mo  : models) {
             CodegenModel cm = mo.getModel();
 
+            // Type is already any
+            if (cm.getAdditionalPropertiesIsAnyType() && "any".equals(cm.getAdditionalPropertiesType())) {
+                cm.setAdditionalPropertiesIsAnyType(false);
+            }
+
             // Deduce the model file name in kebab case
             cm.classFilename = cm.classname.replaceAll("([a-z0-9])([A-Z])", "$1-$2").toLowerCase(Locale.ROOT);
 
diff --git a/modules/openapi-generator/src/main/resources/typescript-axios/modelGeneric.mustache b/modules/openapi-generator/src/main/resources/typescript-axios/modelGeneric.mustache
index db1cd109c4a..878383ded67 100644
--- a/modules/openapi-generator/src/main/resources/typescript-axios/modelGeneric.mustache
+++ b/modules/openapi-generator/src/main/resources/typescript-axios/modelGeneric.mustache
@@ -5,7 +5,7 @@
  */
 export interface {{classname}} {{#parent}}extends {{{.}}} {{/parent}}{
 {{#additionalPropertiesType}}
-    [key: string]: {{{additionalPropertiesType}}}{{^additionalPropertiesIsAnyType}}{{#hasVars}} | any{{/hasVars}}{{/additionalPropertiesIsAnyType}};
+    [key: string]: {{{additionalPropertiesType}}}{{#additionalPropertiesIsAnyType}}{{#hasVars}} | any{{/hasVars}}{{/additionalPropertiesIsAnyType}};
 
 {{/additionalPropertiesType}}
 {{#vars}}
diff --git a/samples/client/petstore/typescript-axios/builds/test-petstore/api.ts b/samples/client/petstore/typescript-axios/builds/test-petstore/api.ts
index b78f8ad853a..c99c97bff09 100644
--- a/samples/client/petstore/typescript-axios/builds/test-petstore/api.ts
+++ b/samples/client/petstore/typescript-axios/builds/test-petstore/api.ts
@@ -447,7 +447,7 @@ export interface Dog extends Animal {
  * @interface Drawing
  */
 export interface Drawing {
-    [key: string]: Fruit;
+    [key: string]: Fruit | any;
 
     /**
      * 
@@ -1043,7 +1043,7 @@ export interface Name {
  * @interface NullableClass
  */
 export interface NullableClass {
-    [key: string]: object;
+    [key: string]: object | any;
 
     /**
      * 
diff --git a/samples/client/petstore/typescript-axios/builds/with-fake-endpoints-models-for-testing-with-http-signature/api.ts b/samples/client/petstore/typescript-axios/builds/with-fake-endpoints-models-for-testing-with-http-signature/api.ts
index ad31a71f0e3..c0f214239f1 100644
--- a/samples/client/petstore/typescript-axios/builds/with-fake-endpoints-models-for-testing-with-http-signature/api.ts
+++ b/samples/client/petstore/typescript-axios/builds/with-fake-endpoints-models-for-testing-with-http-signature/api.ts
@@ -811,7 +811,7 @@ export interface Name {
  * @interface NullableClass
  */
 export interface NullableClass {
-    [key: string]: object;
+    [key: string]: object | any;
 
     /**
      *