diff --git a/.gitignore b/.gitignore
index 2d145b83d98..83f3c8d9031 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@
 .metals
 project/boot
 target
+**/src/*/managed
 .ensime
 .ensime_lucene
 .ensime_cache
diff --git a/build.sbt b/build.sbt
index 339d905c5de..db3e0ccb5e6 100644
--- a/build.sbt
+++ b/build.sbt
@@ -85,6 +85,9 @@ lazy val testingDependencies = Seq(
   )
 )
 
+lazy val sharedSourceManaged =
+  Compile / sourceManaged := baseDirectory.value.getParentFile / "src" / "main" / "managed"
+
 lazy val root = tlCrossRootProject
   .aggregate(
     kernel,
@@ -109,6 +112,7 @@ lazy val kernel = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .in(file("kernel"))
   .settings(moduleName := "cats-kernel", name := "Cats kernel")
   .settings(testingDependencies)
+  .settings(sharedSourceManaged)
   .settings(Compile / sourceGenerators += (Compile / sourceManaged).map(KernelBoiler.gen).taskValue)
   .jsSettings(commonJsSettings)
   .jvmSettings(commonJvmSettings, cats1BincompatSettings)
@@ -139,6 +143,7 @@ lazy val algebra = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .in(file("algebra-core"))
   .dependsOn(kernel)
   .settings(moduleName := "algebra", name := "Cats algebra")
+  .settings(sharedSourceManaged)
   .settings(Compile / sourceGenerators += (Compile / sourceManaged).map(AlgebraBoilerplate.gen).taskValue)
   .jsSettings(commonJsSettings)
   .jvmSettings(commonJvmSettings)
@@ -167,6 +172,7 @@ lazy val core = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .dependsOn(kernel)
   .settings(moduleName := "cats-core", name := "Cats core")
   .settings(macroSettings)
+  .settings(sharedSourceManaged)
   .settings(Compile / sourceGenerators += (Compile / sourceManaged).map(Boilerplate.gen).taskValue)
   .settings(
     libraryDependencies += "org.scalacheck" %%% "scalacheck" % scalaCheckVersion % Test,