diff --git a/dist/setup/index.js b/dist/setup/index.js
index 64328d97..34b866d8 100644
--- a/dist/setup/index.js
+++ b/dist/setup/index.js
@@ -13890,8 +13890,7 @@ class MicrosoftDistributions extends base_installer_1.JavaBase {
                 throw new Error('Early access versions are not supported');
             }
             if (this.packageType !== 'jdk') {
-                this.packageType = 'jdk';
-                core.warning('Microsoft Build of OpenJDK always uses the `jdk` package type.  Remove the `java-package` argument when calling the action to silence this warning.');
+                throw new Error('Microsoft Build of OpenJDK provides only the `jdk` package type');
             }
             const availableVersionsRaw = yield this.getAvailableVersions();
             const opts = this.getPlatformOption();
diff --git a/src/distributions/microsoft/installer.ts b/src/distributions/microsoft/installer.ts
index 6f20a8a3..147c543f 100644
--- a/src/distributions/microsoft/installer.ts
+++ b/src/distributions/microsoft/installer.ts
@@ -46,10 +46,7 @@ export class MicrosoftDistributions extends JavaBase {
     }
 
     if (this.packageType !== 'jdk') {
-      this.packageType = 'jdk';
-      core.warning(
-        'Microsoft Build of OpenJDK always uses the `jdk` package type.  Remove the `java-package` argument when calling the action to silence this warning.'
-      );
+      throw new Error('Microsoft Build of OpenJDK provides only the `jdk` package type');
     }
 
     const availableVersionsRaw = await this.getAvailableVersions();