diff --git a/build.sc b/build.sc
index 1f000c9caad..c7935231fc1 100644
--- a/build.sc
+++ b/build.sc
@@ -441,15 +441,15 @@ trait MillStableScalaModule extends MillPublishScalaModule with Mima {
     ),
     // See https://github.com/com-lihaoyi/mill/pull/3072
     ProblemFilter.exclude[ReversedMissingMethodProblem](
-      "mill.scalalib.ScalaModule.mill$scalalib$ScalaModule$$super$auxiliaryClassFileExtensions"
+      "mill.scalalib.ScalaModule.mill$scalalib$ScalaModule$$super$zincAuxiliaryClassFileExtensions"
     ),
     // See https://github.com/com-lihaoyi/mill/pull/3072
     ProblemFilter.exclude[ReversedMissingMethodProblem](
-      "mill.scalajslib.ScalaJSModule.mill$scalajslib$ScalaJSModule$$super$auxiliaryClassFileExtensions"
+      "mill.scalajslib.ScalaJSModule.mill$scalajslib$ScalaJSModule$$super$zincAuxiliaryClassFileExtensions"
     ),
     // See https://github.com/com-lihaoyi/mill/pull/3072
     ProblemFilter.exclude[ReversedMissingMethodProblem](
-      "mill.scalanativelib.ScalaNativeModule.mill$scalanativelib$ScalaNativeModule$$super$auxiliaryClassFileExtensions"
+      "mill.scalanativelib.ScalaNativeModule.mill$scalanativelib$ScalaNativeModule$$super$zincAuxiliaryClassFileExtensions"
     )
   )
   def mimaPreviousVersions: T[Seq[String]] = Settings.mimaBaseVersions
diff --git a/scalajslib/src/mill/scalajslib/ScalaJSModule.scala b/scalajslib/src/mill/scalajslib/ScalaJSModule.scala
index c572eefdd1a..cd6ac0baaba 100644
--- a/scalajslib/src/mill/scalajslib/ScalaJSModule.scala
+++ b/scalajslib/src/mill/scalajslib/ScalaJSModule.scala
@@ -295,8 +295,8 @@ trait ScalaJSModule extends scalalib.ScalaModule { outer =>
     ))
   }
 
-  override def auxiliaryClassFileExtensions: T[Seq[String]] =
-    super.auxiliaryClassFileExtensions() :+ "sjsir"
+  override def zincAuxiliaryClassFileExtensions: T[Seq[String]] =
+    super.zincAuxiliaryClassFileExtensions() :+ "sjsir"
 
 }
 
diff --git a/scalalib/src/mill/scalalib/JavaModule.scala b/scalalib/src/mill/scalalib/JavaModule.scala
index 6d08a306acf..132e9e31f6a 100644
--- a/scalalib/src/mill/scalalib/JavaModule.scala
+++ b/scalalib/src/mill/scalalib/JavaModule.scala
@@ -1009,7 +1009,7 @@ trait JavaModule
   /**
    * Files extensions that need to be managed by Zinc together with class files
    */
-  def auxiliaryClassFileExtensions: T[Seq[String]] = T { Seq.empty[String] }
+  def zincAuxiliaryClassFileExtensions: T[Seq[String]] = T { Seq.empty[String] }
 
   /**
    * @param all If `true` fetches also source dependencies
diff --git a/scalalib/src/mill/scalalib/ScalaModule.scala b/scalalib/src/mill/scalalib/ScalaModule.scala
index b26ec5e7478..c8c884238f1 100644
--- a/scalalib/src/mill/scalalib/ScalaModule.scala
+++ b/scalalib/src/mill/scalalib/ScalaModule.scala
@@ -299,7 +299,7 @@ trait ScalaModule extends JavaModule with TestModule.ScalaModuleBase { outer =>
         reporter = T.reporter.apply(hashCode),
         reportCachedProblems = zincReportCachedProblems(),
         incrementalCompilation = zincIncrementalCompilation(),
-        auxiliaryClassFileExtensions = auxiliaryClassFileExtensions()
+        auxiliaryClassFileExtensions = zincAuxiliaryClassFileExtensions()
       )
   }
 
@@ -549,8 +549,8 @@ trait ScalaModule extends JavaModule with TestModule.ScalaModuleBase { outer =>
     else ZincWorkerUtil.scalaBinaryVersion(scalaVersion())
   }
 
-  override def auxiliaryClassFileExtensions: T[Seq[String]] = T {
-    super.auxiliaryClassFileExtensions() ++ (
+  override def zincAuxiliaryClassFileExtensions: T[Seq[String]] = T {
+    super.zincAuxiliaryClassFileExtensions() ++ (
       if (ZincWorkerUtil.isScala3(scalaVersion())) Seq("tasty")
       else Seq.empty[String]
     )
@@ -674,7 +674,7 @@ trait ScalaModule extends JavaModule with TestModule.ScalaModuleBase { outer =>
         reporter = None,
         reportCachedProblems = zincReportCachedProblems(),
         incrementalCompilation = zincIncrementalCompilation(),
-        auxiliaryClassFileExtensions = auxiliaryClassFileExtensions()
+        auxiliaryClassFileExtensions = zincAuxiliaryClassFileExtensions()
       )
       .map(r =>
         SemanticDbJavaModule.copySemanticdbFiles(r.classes.path, T.workspace, T.dest / "data")
diff --git a/scalanativelib/src/mill/scalanativelib/ScalaNativeModule.scala b/scalanativelib/src/mill/scalanativelib/ScalaNativeModule.scala
index 0e62d883f7c..d934ada850c 100644
--- a/scalanativelib/src/mill/scalanativelib/ScalaNativeModule.scala
+++ b/scalanativelib/src/mill/scalanativelib/ScalaNativeModule.scala
@@ -335,8 +335,8 @@ trait ScalaNativeModule extends ScalaModule { outer =>
     }
   }
 
-  override def auxiliaryClassFileExtensions: T[Seq[String]] =
-    super.auxiliaryClassFileExtensions() :+ "nir"
+  override def zincAuxiliaryClassFileExtensions: T[Seq[String]] =
+    super.zincAuxiliaryClassFileExtensions() :+ "nir"
 
 }