diff --git a/src/apitypes/rest/rest.utils.ts b/src/apitypes/rest/rest.utils.ts
index b0ebb9c..4ac391d 100644
--- a/src/apitypes/rest/rest.utils.ts
+++ b/src/apitypes/rest/rest.utils.ts
@@ -27,6 +27,10 @@ export const getOperationBasePath = (servers?: OpenAPIV3.ServerObject[]): string
   try {
     const [firstServer] = servers
     let serverUrl = firstServer.url
+    if(!serverUrl) {
+      return ''
+    }
+
     const { variables = {} } = firstServer
 
     for (const param of Object.keys(variables)) {
diff --git a/test/bugs.test.ts b/test/bugs.test.ts
index 6f1ec8c..dce10d0 100644
--- a/test/bugs.test.ts
+++ b/test/bugs.test.ts
@@ -342,4 +342,18 @@ describe('Operation Bugs', () => {
 
     expect(editor.builder.operationList.every(operation => operation.apiKind === API_KIND.NO_BWC)).toBeTruthy()
   })
+
+  test('should correctly calculate operationId for servers with incorrect URL', async () => {
+    const editor = await Editor.openProject('bugs', bugsPackage)
+
+    const result = await editor.run({
+      version: 'v1',
+      files: [
+        { fileId: 'should-correctly-calculate-operation-id-for-servers-with-incorrect-url.yaml', publish: true },
+      ],
+    })
+
+    const operationKeys = Array.from(result.operations.keys())
+    expect(operationKeys[0]).toEqual('paths1-get')
+  })
 })
diff --git a/test/projects/bugs/docs/Markdown_example.md b/test/projects/bugs/docs/Markdown_example.md
index c162397..4ec3731 100644
--- a/test/projects/bugs/docs/Markdown_example.md
+++ b/test/projects/bugs/docs/Markdown_example.md
@@ -8,7 +8,7 @@ Supports OpenAPI and GraphQL specifications processing.
 - Added cycles support during combiners resolve
 - Added origins support- it is now possible for any value in the unified JSO to track its origins in the source specification
 - Store original ref for the object if the object was resolved from ref
-- Gathered various API unification adapters from different libraries in the stack to a single place 
+- Gathered various API unification adapters from different libraries in the stack to a single place
 - Support data structure hash calculation
 - Process different phases sequentially (reference resolving, allOf merge, unification)
 - Support synthetic `any` and `nothing` type for OAS
@@ -26,14 +26,14 @@ Supports OpenAPI and GraphQL specifications processing.
 - Correctly merge additionalProperties, patternProperties and properties taking into account common validations
 - Correctly merge items and additionalItems taking into account common validations
 - Supports custom rules to merge other document types and JsonSchema versions
-- Supports input with circular references (javaScript references)
+- Supports input with circular references (JavaScript references)
 - Supports $refs and circular $refs either (internal references only)
 - Correctly merge of $refs with sibling content (optionally)
 - Correctly merge of combiners (anyOf, oneOf) with sibling content (optionally)
-- Typescript syntax support out of the box
-- No dependencies (except json-crawl), can be used in NodeJS or browser
+- TypeScript syntax support out of the box
+- No dependencies (except json-crawl), can be used in Node.js or browser
 
-## Works perfectly with specifications:
+## Works perfectly with specifications
 
 - [JsonSchema](https://json-schema.org/draft/2020-12/json-schema-core.html)
 - [OpenApi 3.x](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.0.3.md)
@@ -43,7 +43,7 @@ Supports OpenAPI and GraphQL specifications processing.
 - ~~AsyncApi 3.x~~ (roadmap)
 
 ## Other libraries
-There are some libraries that can merge schemas combined with allOf. One of the most popular is [mokkabonna/json-schema-merge-allof](https://www.npmjs.com/package/json-schema-merge-allof), but it has some limitatons: Does not support circular $refs and no Typescript syntax out of the box.
+There are some libraries that can merge schemas combined with allOf. One of the most popular is [mokkabonna/json-schema-merge-allof](https://npmjs.com/package/json-schema-merge-allof), but it has some limitatons: Does not support circular $refs and no TypeScript syntax out of the box.
 
 ## License
 
diff --git a/test/projects/bugs/should-correctly-calculate-operation-id-for-servers-with-incorrect-url.yaml b/test/projects/bugs/should-correctly-calculate-operation-id-for-servers-with-incorrect-url.yaml
new file mode 100644
index 0000000..99174a6
--- /dev/null
+++ b/test/projects/bugs/should-correctly-calculate-operation-id-for-servers-with-incorrect-url.yaml
@@ -0,0 +1,17 @@
+openapi: 3.0.3
+info:
+  title: test
+  version: 1.0.0
+servers:
+  - url: []
+paths:
+  /paths1:
+    get:
+      description: test
+      responses:
+        '200':
+          description: Success
+          content:
+            application/json:
+              schema:
+                type: object