diff --git a/build.gradle.kts b/build.gradle.kts
index 3c5abd9..b12a9e8 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -128,6 +128,9 @@ signing {
     val signingPassword: String? by project
     useInMemoryPgpKeys(signingKey, signingPassword)
     sign(publishing.publications["pluginMaven"])
+    afterEvaluate {
+        sign(publishing.publications["buildInfoPluginPluginMarkerMaven"])
+    }
 }
 
 nexusPublishing {