diff --git a/sources/src/caching/gradle-user-home-utils.ts b/sources/src/caching/gradle-user-home-utils.ts
index 2dd4574..d9dd24b 100644
--- a/sources/src/caching/gradle-user-home-utils.ts
+++ b/sources/src/caching/gradle-user-home-utils.ts
@@ -30,6 +30,7 @@ export function getPredefinedToolchains(): string | null {
     for (const javaHomeEnv of javaHomeEnvs) {
         const version = javaHomeEnv.match(/JAVA_HOME_(\d+)_/)?.[1]!
         toolchainsXml += `  <toolchain>
+    <type>jdk</type>
     <provides>
       <version>${version}</version>
       <vendor>Eclipse Temurin</vendor>
diff --git a/sources/test/jest/predefined-toolchains.test.ts b/sources/test/jest/predefined-toolchains.test.ts
index 48c3a40..56e6ce3 100644
--- a/sources/test/jest/predefined-toolchains.test.ts
+++ b/sources/test/jest/predefined-toolchains.test.ts
@@ -32,6 +32,7 @@ describe('predefined-toolchains', () => {
 <toolchains>
 <!-- JDK Toolchains installed by default on GitHub-hosted runners -->
   <toolchain>
+    <type>jdk</type>
     <provides>
       <version>8</version>
       <vendor>Eclipse Temurin</vendor>
@@ -41,6 +42,7 @@ describe('predefined-toolchains', () => {
     </configuration>
   </toolchain>
   <toolchain>
+    <type>jdk</type>
     <provides>
       <version>11</version>
       <vendor>Eclipse Temurin</vendor>
@@ -50,6 +52,7 @@ describe('predefined-toolchains', () => {
     </configuration>
   </toolchain>
   <toolchain>
+    <type>jdk</type>
     <provides>
       <version>21</version>
       <vendor>Eclipse Temurin</vendor>