diff --git a/compiler/testData/diagnostics/testsWithJsStdLib/export/secondaryConstructorWithoutJsName.kt b/compiler/testData/diagnostics/testsWithJsStdLib/export/secondaryConstructorWithoutJsName.kt
index d4104b6d13f..0923d49f68c 100644
--- a/compiler/testData/diagnostics/testsWithJsStdLib/export/secondaryConstructorWithoutJsName.kt
+++ b/compiler/testData/diagnostics/testsWithJsStdLib/export/secondaryConstructorWithoutJsName.kt
@@ -12,4 +12,9 @@ class C(val x: String) {
 class C2(val x: String) {
     @JsName("JsNameProvided")
     constructor(x: Int): this(x.toString())
-}
\ No newline at end of file
+}
+
+@JsExport
+class C3(val x: String) {
+    protected <!WRONG_EXPORTED_DECLARATION("secondary constructor without @JsName")!>constructor(x: Int)<!>: this(x.toString())
+}
diff --git a/compiler/testData/diagnostics/testsWithJsStdLib/export/secondaryConstructorWithoutJsName.txt b/compiler/testData/diagnostics/testsWithJsStdLib/export/secondaryConstructorWithoutJsName.txt
index 8620cc983ec..c0214f07f99 100644
--- a/compiler/testData/diagnostics/testsWithJsStdLib/export/secondaryConstructorWithoutJsName.txt
+++ b/compiler/testData/diagnostics/testsWithJsStdLib/export/secondaryConstructorWithoutJsName.txt
@@ -19,4 +19,13 @@ package foo {
         public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
         public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
     }
+
+    @kotlin.js.JsExport public final class C3 {
+        protected constructor C3(/*0*/ x: kotlin.Int)
+        public constructor C3(/*0*/ x: kotlin.String)
+        public final val x: kotlin.String
+        public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+        public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+        public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+    }
 }
diff --git a/compiler/testData/diagnostics/testsWithJsStdLib/export/secondaryConstructorWithoutJsNameInExportedFile.kt b/compiler/testData/diagnostics/testsWithJsStdLib/export/secondaryConstructorWithoutJsNameInExportedFile.kt
index ad44f0843f1..f3a91ee8d6f 100644
--- a/compiler/testData/diagnostics/testsWithJsStdLib/export/secondaryConstructorWithoutJsNameInExportedFile.kt
+++ b/compiler/testData/diagnostics/testsWithJsStdLib/export/secondaryConstructorWithoutJsNameInExportedFile.kt
@@ -11,4 +11,8 @@ class C(val x: String) {
 class C2(val x: String) {
     @JsName("JsNameProvided")
     constructor(x: Int): this(x.toString())
-}
\ No newline at end of file
+}
+
+class C3(val x: String) {
+    protected <!WRONG_EXPORTED_DECLARATION("secondary constructor without @JsName")!>constructor(x: Int)<!>: this(x.toString())
+}
diff --git a/compiler/testData/diagnostics/testsWithJsStdLib/export/secondaryConstructorWithoutJsNameInExportedFile.txt b/compiler/testData/diagnostics/testsWithJsStdLib/export/secondaryConstructorWithoutJsNameInExportedFile.txt
index c362f0317bb..29e57c4b4d1 100644
--- a/compiler/testData/diagnostics/testsWithJsStdLib/export/secondaryConstructorWithoutJsNameInExportedFile.txt
+++ b/compiler/testData/diagnostics/testsWithJsStdLib/export/secondaryConstructorWithoutJsNameInExportedFile.txt
@@ -19,4 +19,13 @@ package foo {
         public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
         public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
     }
+
+    public final class C3 {
+        protected constructor C3(/*0*/ x: kotlin.Int)
+        public constructor C3(/*0*/ x: kotlin.String)
+        public final val x: kotlin.String
+        public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+        public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+        public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+    }
 }
diff --git a/js/js.frontend/src/org/jetbrains/kotlin/js/translate/utils/AnnotationsUtils.java b/js/js.frontend/src/org/jetbrains/kotlin/js/translate/utils/AnnotationsUtils.java
index 060ce04ed9b..b0ce258db89 100644
--- a/js/js.frontend/src/org/jetbrains/kotlin/js/translate/utils/AnnotationsUtils.java
+++ b/js/js.frontend/src/org/jetbrains/kotlin/js/translate/utils/AnnotationsUtils.java
@@ -121,7 +121,8 @@ public final class AnnotationsUtils {
     public static boolean isExportedObject(@NotNull DeclarationDescriptor descriptor, @NotNull BindingContext bindingContext) {
         if (descriptor instanceof MemberDescriptor) {
             MemberDescriptor memberDescriptor = (MemberDescriptor) descriptor;
-            if (memberDescriptor.getVisibility() != DescriptorVisibilities.PUBLIC) return false;
+            DescriptorVisibility visibility = memberDescriptor.getVisibility();
+            if (visibility != DescriptorVisibilities.PUBLIC && visibility != DescriptorVisibilities.PROTECTED) return false;
         }
 
         if (hasAnnotationOrInsideAnnotatedClass(descriptor, JS_EXPORT_IGNORE)) return false;