diff --git a/libraries/stdlib/common/build.gradle b/libraries/stdlib/common/build.gradle
index 65316a3a556..1fc59483143 100644
--- a/libraries/stdlib/common/build.gradle
+++ b/libraries/stdlib/common/build.gradle
@@ -15,6 +15,7 @@ sourceSets {
             srcDir 'src'
             srcDir commonSrcDir
             srcDir '../unsigned/src'
+            srcDir "$rootDir/core/builtins/src/kotlin/internal"
         }
     }
     test {
diff --git a/libraries/stdlib/js-v1/build.gradle b/libraries/stdlib/js-v1/build.gradle
index 5d42c33736e..2ef62529326 100644
--- a/libraries/stdlib/js-v1/build.gradle
+++ b/libraries/stdlib/js-v1/build.gradle
@@ -105,8 +105,6 @@ task prepareBuiltinsSources(type: Copy) {
         include "Progressions.kt"
         include "ProgressionIterators.kt"
         include "Ranges.kt"
-        include "internal/InternalAnnotations.kt"
-        include "internal/progressionUtil.kt"
         include "Unit.kt"
     }
     into builtinsSrcDir