diff --git a/.changeset/slow-suits-rescue.md b/.changeset/slow-suits-rescue.md
new file mode 100644
index 0000000000..96a963f19f
--- /dev/null
+++ b/.changeset/slow-suits-rescue.md
@@ -0,0 +1,8 @@
+---
+'@backstage/plugin-catalog-backend-module-gcp': patch
+---
+
+Fix GKE endpoint parsing
+
+Endpoint is an IP, not url. It is always https on default (443) port
+ref: https://cloud.google.com/kubernetes-engine/docs/reference/rest/v1/projects.locations.clusters#Cluster
diff --git a/plugins/catalog-backend-module-gcp/src/providers/GkeEntityProvider.test.ts b/plugins/catalog-backend-module-gcp/src/providers/GkeEntityProvider.test.ts
index 20e91a85bf..76df12e4e4 100644
--- a/plugins/catalog-backend-module-gcp/src/providers/GkeEntityProvider.test.ts
+++ b/plugins/catalog-backend-module-gcp/src/providers/GkeEntityProvider.test.ts
@@ -83,9 +83,9 @@ describe('GkeEntityProvider', () => {
             clusters: [
               {
                 name: 'some-cluster',
-                endpoint: 'http://127.0.0.1:1234',
+                endpoint: '127.0.0.1',
                 location: 'some-location',
-                selfLink: 'http://127.0.0.1/some-link',
+                selfLink: 'https://127.0.0.1/some-link',
                 masterAuth: {
                   clusterCaCertificate: 'abcdefg',
                 },
@@ -99,9 +99,9 @@ describe('GkeEntityProvider', () => {
             clusters: [
               {
                 name: 'some-other-cluster',
-                endpoint: 'http://127.0.0.1:5678',
+                endpoint: '127.0.0.1',
                 location: 'some-other-location',
-                selfLink: 'http://127.0.0.1/some-other-link',
+                selfLink: 'https://127.0.0.1/some-other-link',
                 masterAuth: {
                   // no CA cert is ok
                 },
@@ -124,7 +124,7 @@ describe('GkeEntityProvider', () => {
             kind: 'Resource',
             metadata: {
               annotations: {
-                [ANNOTATION_KUBERNETES_API_SERVER]: 'http://127.0.0.1:1234',
+                [ANNOTATION_KUBERNETES_API_SERVER]: 'https://127.0.0.1',
                 [ANNOTATION_KUBERNETES_API_SERVER_CA]: 'abcdefg',
                 [ANNOTATION_KUBERNETES_AUTH_PROVIDER]: 'google',
                 'backstage.io/managed-by-location': 'gcp-gke:some-location',
@@ -147,7 +147,7 @@ describe('GkeEntityProvider', () => {
             kind: 'Resource',
             metadata: {
               annotations: {
-                [ANNOTATION_KUBERNETES_API_SERVER]: 'http://127.0.0.1:5678',
+                [ANNOTATION_KUBERNETES_API_SERVER]: 'https://127.0.0.1',
                 [ANNOTATION_KUBERNETES_API_SERVER_CA]: '',
                 [ANNOTATION_KUBERNETES_AUTH_PROVIDER]: 'google',
                 'backstage.io/managed-by-location':
@@ -175,7 +175,7 @@ describe('GkeEntityProvider', () => {
     [
       'no-cluster-name',
       {
-        endpoint: 'http://127.0.0.1:1234',
+        endpoint: '127.0.0.1',
         location: 'some-location',
         selfLink: 'http://127.0.0.1/some-link',
         masterAuth: {
@@ -188,7 +188,7 @@ describe('GkeEntityProvider', () => {
       {
         // no selfLink
         name: 'some-name',
-        endpoint: 'http://127.0.0.1:1234',
+        endpoint: '127.0.0.1',
         location: 'some-location',
         masterAuth: {
           clusterCaCertificate: 'abcdefg',
@@ -210,7 +210,7 @@ describe('GkeEntityProvider', () => {
       'no-location',
       {
         name: 'some-name',
-        endpoint: 'http://127.0.0.1:1234',
+        endpoint: '127.0.0.1',
         selfLink: 'http://127.0.0.1/some-link',
         masterAuth: {
           clusterCaCertificate: 'abcdefg',
diff --git a/plugins/catalog-backend-module-gcp/src/providers/GkeEntityProvider.ts b/plugins/catalog-backend-module-gcp/src/providers/GkeEntityProvider.ts
index 0130955737..384cd839b2 100644
--- a/plugins/catalog-backend-module-gcp/src/providers/GkeEntityProvider.ts
+++ b/plugins/catalog-backend-module-gcp/src/providers/GkeEntityProvider.ts
@@ -138,7 +138,7 @@ export class GkeEntityProvider implements EntityProvider {
         kind: 'Resource',
         metadata: {
           annotations: {
-            [ANNOTATION_KUBERNETES_API_SERVER]: cluster.endpoint,
+            [ANNOTATION_KUBERNETES_API_SERVER]: `https://${cluster.endpoint}`,
             [ANNOTATION_KUBERNETES_API_SERVER_CA]:
               cluster.masterAuth?.clusterCaCertificate || '',
             [ANNOTATION_KUBERNETES_AUTH_PROVIDER]: 'google',