diff --git a/build.sbt b/build.sbt
index 078df862f..b0fa5799b 100644
--- a/build.sbt
+++ b/build.sbt
@@ -122,7 +122,10 @@ lazy val sbtPlugin = Project(id = "sbt-akka-grpc", base = file("sbt-plugin"))
     },
     scriptedBufferLog := false,
     crossScalaVersions := Dependencies.Versions.CrossScalaForPlugin,
-    scalaVersion := Dependencies.Versions.CrossScalaForPlugin.head)
+    scalaVersion := Dependencies.Versions.CrossScalaForPlugin.head,
+    publishConfiguration := publishConfiguration.value.withArtifacts(
+      // avoid publishing the plugin jar twice
+      publishConfiguration.value.artifacts.filter(_._1.name.contains("2.12_1.0"))))
   .dependsOn(codegen)
 
 lazy val interopTests = Project(id = "akka-grpc-interop-tests", base = file("interop-tests"))