diff --git a/compiler/ir/backend.js/build.gradle.kts b/compiler/ir/backend.js/build.gradle.kts
index 3729a7023ea..7c65f34e3f5 100644
--- a/compiler/ir/backend.js/build.gradle.kts
+++ b/compiler/ir/backend.js/build.gradle.kts
@@ -14,6 +14,7 @@ dependencies {
     compile(project(":compiler:ir.tree.persistent"))
     compile(project(":js:js.ast"))
     compile(project(":js:js.frontend"))
+    compile(project(":js:js.sourcemap"))
 
     compileOnly(intellijCoreDep()) { includeJars("intellij-core") }
 }