diff --git a/lib/modules/datasource/terraform-module/__fixtures__/registry-versions-with-source.json b/lib/modules/datasource/terraform-module/__fixtures__/registry-versions-with-source.json
new file mode 100644
index 00000000000000..614ef26c199a61
--- /dev/null
+++ b/lib/modules/datasource/terraform-module/__fixtures__/registry-versions-with-source.json
@@ -0,0 +1,35 @@
+{
+  "modules": [
+    {
+      "versions": [
+        {
+          "version": "0.0.2",
+          "submodules": [],
+          "root": {
+            "dependencies": [],
+            "providers": [
+              {
+                "name": "local",
+                "version": ""
+              }
+            ]
+          }
+        },
+        {
+          "version": "0.0.1",
+          "submodules": [],
+          "root": {
+            "dependencies": [],
+            "providers": [
+              {
+                "name": "local",
+                "version": ""
+              }
+            ]
+          }
+        }
+      ],
+      "source": "https://gitlab.com/renovate-issue-25003/mymodule"
+    }
+  ]
+}
diff --git a/lib/modules/datasource/terraform-module/index.spec.ts b/lib/modules/datasource/terraform-module/index.spec.ts
index de102a2324b298..8360e066faba4e 100644
--- a/lib/modules/datasource/terraform-module/index.spec.ts
+++ b/lib/modules/datasource/terraform-module/index.spec.ts
@@ -5,6 +5,9 @@ import { TerraformModuleDatasource } from '.';
 
 const consulData = Fixtures.get('registry-consul.json');
 const consulVersionsData = Fixtures.get('registry-consul-versions.json');
+const versionsDataWithSourceUrl = Fixtures.get(
+  'registry-versions-with-source.json'
+);
 const serviceDiscoveryResult = Fixtures.get('service-discovery.json');
 const serviceDiscoveryCustomResult = Fixtures.get(
   'service-custom-discovery.json'
@@ -176,6 +179,32 @@ describe('modules/datasource/terraform-module/index', () => {
       });
     });
 
+    it('processes real data from third party including source url', async () => {
+      httpMock
+        .scope('https://terraform.company.com')
+        .get('/v1/modules/renovate-issue-25003/mymodule/local/versions')
+        .reply(200, versionsDataWithSourceUrl)
+        .get('/.well-known/terraform.json')
+        .reply(200, serviceDiscoveryResult);
+      const res = await getPkgReleases({
+        datasource,
+        packageName: 'renovate-issue-25003/mymodule/local',
+        registryUrls: ['https://terraform.company.com'],
+      });
+      expect(res).toEqual({
+        registryUrl: 'https://terraform.company.com',
+        releases: [
+          {
+            version: '0.0.1',
+          },
+          {
+            version: '0.0.2',
+          },
+        ],
+        sourceUrl: 'https://gitlab.com/renovate-issue-25003/mymodule',
+      });
+    });
+
     it('processes with registry in name', async () => {
       httpMock
         .scope(baseUrl)
diff --git a/lib/modules/datasource/terraform-module/index.ts b/lib/modules/datasource/terraform-module/index.ts
index e85a5c7c99934c..81e3e2a6c36ad9 100644
--- a/lib/modules/datasource/terraform-module/index.ts
+++ b/lib/modules/datasource/terraform-module/index.ts
@@ -2,6 +2,7 @@ import { logger } from '../../../logger';
 import { cache } from '../../../util/cache/package/decorator';
 import { regEx } from '../../../util/regex';
 import { coerceString } from '../../../util/string';
+import { validateUrl } from '../../../util/url';
 import * as hashicorpVersioning from '../../versioning/hashicorp';
 import type { GetReleasesConfig, ReleaseResult } from '../types';
 import { TerraformDatasource } from './base';
@@ -159,6 +160,12 @@ export class TerraformModuleDatasource extends TerraformDatasource {
         version,
       })),
     };
+
+    // Add the source URL if given
+    if (validateUrl(res.modules[0].source)) {
+      dep.sourceUrl = res.modules[0].source;
+    }
+
     return dep;
   }
 
diff --git a/lib/modules/datasource/terraform-module/types.ts b/lib/modules/datasource/terraform-module/types.ts
index c394ee55a463bd..4a47ada419ca83 100644
--- a/lib/modules/datasource/terraform-module/types.ts
+++ b/lib/modules/datasource/terraform-module/types.ts
@@ -22,6 +22,9 @@ export interface TerraformModuleVersions {
 
 export interface TerraformModuleVersionsModules {
   versions: TerraformModuleVersionsModuleVersion[];
+  // 'source' is not part of the base spec but GitLab supports it:
+  // https://docs.gitlab.com/ee/api/packages/terraform-modules.html#list-available-versions-for-a-specific-module
+  source?: string;
 }
 
 export interface TerraformModuleVersionsModuleVersion {