diff --git a/core/apps/ame-e2e/src/support/commands.ts b/core/apps/ame-e2e/src/support/commands.ts
index 8fd0242c..d3b6d856 100644
--- a/core/apps/ame-e2e/src/support/commands.ts
+++ b/core/apps/ame-e2e/src/support/commands.ts
@@ -535,13 +535,13 @@ Cypress.Commands.add('saveAspectModelToWorkspace', () => {
 Cypress.Commands.add('openGenerationOpenApiSpec', () => {
   cy.intercept(
     'POST',
-    'http://localhost:9091/ame/api/generate/open-api-spec?language=en&output=json&baseUrl=https://example.com&includeQueryApi=false&useSemanticVersion=false&pagingOption=NO_PAGING&resourcePath=null&ymlProperties=&jsonProperties=',
+    'http://localhost:9091/ame/api/generate/open-api-spec?language=en&output=json&baseUrl=https://example.com&includeQueryApi=false&useSemanticVersion=false&pagingOption=NO_PAGING&resourcePath=&ymlProperties=&jsonProperties=',
     {fixture: 'valid-open-api.json'},
   );
 
   cy.intercept(
     'POST',
-    'http://localhost:9091/ame/api/generate/open-api-spec?language=en&output=yaml&baseUrl=https://example.com&includeQueryApi=false&useSemanticVersion=false&pagingOption=NO_PAGING&resourcePath=null&ymlProperties=&jsonProperties=',
+    'http://localhost:9091/ame/api/generate/open-api-spec?language=en&output=yaml&baseUrl=https://example.com&includeQueryApi=false&useSemanticVersion=false&pagingOption=NO_PAGING&resourcePath=&ymlProperties=&jsonProperties=',
     {fixture: 'valid-open-api.yaml'},
   );
 
diff --git a/core/libs/editor/src/lib/editor-toolbar/components/generate-open-api/generate-open-api.component.ts b/core/libs/editor/src/lib/editor-toolbar/components/generate-open-api/generate-open-api.component.ts
index 50c1c98c..563f5040 100644
--- a/core/libs/editor/src/lib/editor-toolbar/components/generate-open-api/generate-open-api.component.ts
+++ b/core/libs/editor/src/lib/editor-toolbar/components/generate-open-api/generate-open-api.component.ts
@@ -111,7 +111,7 @@ export class GenerateOpenApiComponent implements OnInit, OnDestroy {
       activateResourcePath: new FormControl(false),
       output: new FormControl('yaml'),
       paging: new FormControl('NO_PAGING'),
-      resourcePath: new FormControl(null),
+      resourcePath: new FormControl(''),
       file: new FormControl(null),
       ymlProperties: new FormControl(null),
       jsonProperties: new FormControl(null),
@@ -129,7 +129,7 @@ export class GenerateOpenApiComponent implements OnInit, OnDestroy {
           resourcePathControl?.setValue('/resource/{resourceId}');
           resourcePathControl?.setValidators(this.resourcePathValidators);
         } else {
-          resourcePathControl?.setValue(null);
+          resourcePathControl?.setValue('');
           resourcePathControl?.setValidators(null);
         }