diff --git a/buildSrc/src/main/groovy/MuzzlePlugin.groovy b/buildSrc/src/main/groovy/MuzzlePlugin.groovy
index 5c203c0e6c..ad8cbfe2ae 100644
--- a/buildSrc/src/main/groovy/MuzzlePlugin.groovy
+++ b/buildSrc/src/main/groovy/MuzzlePlugin.groovy
@@ -53,6 +53,9 @@ class MuzzlePlugin implements Plugin<Project> {
     project.tasks.muzzle.dependsOn(toolingProject.tasks.compileJava)
     project.afterEvaluate {
       project.tasks.muzzle.dependsOn(project.tasks.compileJava)
+      if (project.tasks.getNames().contains("compileScala")) {
+        project.tasks.muzzle.dependsOn(project.tasks.compileScala)
+      }
     }
   }
 }