diff --git a/compiler/fir/resolve/src/.gitattributes b/compiler/fir/resolve/src/.gitattributes
new file mode 100644
index 00000000000..d0496f1a266
--- /dev/null
+++ b/compiler/fir/resolve/src/.gitattributes
@@ -0,0 +1 @@
+*.kt eol=lf
diff --git a/compiler/fir/tree/build.gradle.kts b/compiler/fir/tree/build.gradle.kts
index b4752f7b8ea..f941c370823 100644
--- a/compiler/fir/tree/build.gradle.kts
+++ b/compiler/fir/tree/build.gradle.kts
@@ -41,6 +41,7 @@ val generateTree by tasks.registering(NoDebugJavaExec::class) {
     args(generationRoot)
     classpath = generatorClasspath
     main = "org.jetbrains.kotlin.fir.tree.generator.MainKt"
+    systemProperties["line.separator"] = "\n"
 }
 
 val compileKotlin by tasks