diff --git a/compiler/build-tools/build-tools-api/build.gradle.kts b/compiler/build-tools/build-tools-api/build.gradle.kts
index b96fc974592..300fa2f9da0 100644
--- a/compiler/build-tools/build-tools-api/build.gradle.kts
+++ b/compiler/build-tools/build-tools-api/build.gradle.kts
@@ -10,6 +10,10 @@ dependencies {
     compileOnly(kotlinStdlib())
 }
 
+kotlin {
+    explicitApi()
+}
+
 publish()
 
 standardPublicJars()
\ No newline at end of file