diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/inline/TypeRemapper.kt b/compiler/backend/src/org/jetbrains/kotlin/codegen/inline/TypeRemapper.kt
index a681eac0661..92498daea76 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/inline/TypeRemapper.kt
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/inline/TypeRemapper.kt
@@ -46,9 +46,10 @@ class TypeRemapper private constructor(
     }
 
     fun registerTypeParameter(name: String) {
-        assert(typeParametersMapping[name] == null) {
-            "Type parameter already registered $name"
-        }
+        //TODO: enable after KT-34656 proper fix
+//        assert(typeParametersMapping[name] == null) {
+//            "Type parameter already registered $name"
+//        }
         typeParametersMapping[name] = TypeParameter(name, name, false, null)
     }
 
diff --git a/compiler/testData/codegen/boxInline/anonymousObject/kt34656.kt b/compiler/testData/codegen/boxInline/anonymousObject/kt34656.kt
new file mode 100644
index 00000000000..9e6aa1d1bd1
--- /dev/null
+++ b/compiler/testData/codegen/boxInline/anonymousObject/kt34656.kt
@@ -0,0 +1,21 @@
+// FILE: 1.kt
+package test
+
+interface Foo {
+    fun call(): String
+}
+
+inline fun f(crossinline g: () -> String) = object: Foo {
+    fun <T> foo() = g()
+    fun <T> bar() = "K"
+    override fun call(): String = foo<String>() + bar<String>()
+}
+
+// FILE: 2.kt
+import test.*
+
+val x = f { "O" }
+
+fun box() : String {
+    return x.call()
+}
\ No newline at end of file
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxInlineCodegenTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxInlineCodegenTestGenerated.java
index a088d0042b2..da07ed70afc 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxInlineCodegenTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxInlineCodegenTestGenerated.java
@@ -211,6 +211,11 @@ public class BlackBoxInlineCodegenTestGenerated extends AbstractBlackBoxInlineCo
             runTest("compiler/testData/codegen/boxInline/anonymousObject/kt19723.kt");
         }
 
+        @TestMetadata("kt34656.kt")
+        public void testKt34656() throws Exception {
+            runTest("compiler/testData/codegen/boxInline/anonymousObject/kt34656.kt");
+        }
+
         @TestMetadata("kt6552.kt")
         public void testKt6552() throws Exception {
             runTest("compiler/testData/codegen/boxInline/anonymousObject/kt6552.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/CompileKotlinAgainstInlineKotlinTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/CompileKotlinAgainstInlineKotlinTestGenerated.java
index d6f8f29a1bc..a4d769d538d 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/CompileKotlinAgainstInlineKotlinTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/CompileKotlinAgainstInlineKotlinTestGenerated.java
@@ -211,6 +211,11 @@ public class CompileKotlinAgainstInlineKotlinTestGenerated extends AbstractCompi
             runTest("compiler/testData/codegen/boxInline/anonymousObject/kt19723.kt");
         }
 
+        @TestMetadata("kt34656.kt")
+        public void testKt34656() throws Exception {
+            runTest("compiler/testData/codegen/boxInline/anonymousObject/kt34656.kt");
+        }
+
         @TestMetadata("kt6552.kt")
         public void testKt6552() throws Exception {
             runTest("compiler/testData/codegen/boxInline/anonymousObject/kt6552.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxInlineCodegenTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxInlineCodegenTestGenerated.java
index 31fccf27e29..8bb52efc1ba 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxInlineCodegenTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxInlineCodegenTestGenerated.java
@@ -211,6 +211,11 @@ public class IrBlackBoxInlineCodegenTestGenerated extends AbstractIrBlackBoxInli
             runTest("compiler/testData/codegen/boxInline/anonymousObject/kt19723.kt");
         }
 
+        @TestMetadata("kt34656.kt")
+        public void testKt34656() throws Exception {
+            runTest("compiler/testData/codegen/boxInline/anonymousObject/kt34656.kt");
+        }
+
         @TestMetadata("kt6552.kt")
         public void testKt6552() throws Exception {
             runTest("compiler/testData/codegen/boxInline/anonymousObject/kt6552.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrCompileKotlinAgainstInlineKotlinTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrCompileKotlinAgainstInlineKotlinTestGenerated.java
index 0c8aab8ba8c..6a215d2143c 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrCompileKotlinAgainstInlineKotlinTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrCompileKotlinAgainstInlineKotlinTestGenerated.java
@@ -211,6 +211,11 @@ public class IrCompileKotlinAgainstInlineKotlinTestGenerated extends AbstractIrC
             runTest("compiler/testData/codegen/boxInline/anonymousObject/kt19723.kt");
         }
 
+        @TestMetadata("kt34656.kt")
+        public void testKt34656() throws Exception {
+            runTest("compiler/testData/codegen/boxInline/anonymousObject/kt34656.kt");
+        }
+
         @TestMetadata("kt6552.kt")
         public void testKt6552() throws Exception {
             runTest("compiler/testData/codegen/boxInline/anonymousObject/kt6552.kt");