diff --git a/core/descriptors/src/org/jetbrains/kotlin/descriptors/typeParameterUtils.kt b/core/descriptors/src/org/jetbrains/kotlin/descriptors/typeParameterUtils.kt
index 30c83702075..bc5d6c920fc 100644
--- a/core/descriptors/src/org/jetbrains/kotlin/descriptors/typeParameterUtils.kt
+++ b/core/descriptors/src/org/jetbrains/kotlin/descriptors/typeParameterUtils.kt
@@ -16,6 +16,7 @@
 
 package org.jetbrains.kotlin.descriptors
 
+import org.jetbrains.kotlin.resolve.DescriptorUtils
 import org.jetbrains.kotlin.types.*
 import org.jetbrains.kotlin.types.error.MissingDependencyErrorClass
 import java.util.*
@@ -65,7 +66,7 @@ fun KotlinType.buildPossiblyInnerType(): PossiblyInnerType? {
 }
 
 private fun KotlinType.buildPossiblyInnerType(classDescriptor: ClassDescriptor?, index: Int): PossiblyInnerType? {
-    if (classDescriptor == null) return null
+    if (classDescriptor == null || ErrorUtils.isError(classDescriptor)) return null
 
     val toIndex = classDescriptor.declaredTypeParameters.size + index
     val argumentsSubList = arguments.subList(index, toIndex)
diff --git a/idea/testData/quickfix/modifiers/kt10409.kt b/idea/testData/quickfix/modifiers/kt10409.kt
new file mode 100644
index 00000000000..879599fc765
--- /dev/null
+++ b/idea/testData/quickfix/modifiers/kt10409.kt
@@ -0,0 +1,14 @@
+// "Make 'IterablePipeline' abstract" "true"
+// ERROR: 'pipe' overrides nothing
+// ERROR: Type argument expected
+
+// Actually this test is about getting rid of assertion happenning while creating quick fixes
+// See KT-10409
+interface Pipeline<TPipeline> {
+    fun pipe(block: Pipeline<TPipeline, String>)
+}
+
+<caret>class IterablePipeline<T> : Pipeline<T> {
+    override fun pipe(block: Pipeline<T>) {
+    }
+}
diff --git a/idea/testData/quickfix/modifiers/kt10409.kt.after b/idea/testData/quickfix/modifiers/kt10409.kt.after
new file mode 100644
index 00000000000..50fffbbc0ef
--- /dev/null
+++ b/idea/testData/quickfix/modifiers/kt10409.kt.after
@@ -0,0 +1,14 @@
+// "Make 'IterablePipeline' abstract" "true"
+// ERROR: 'pipe' overrides nothing
+// ERROR: Type argument expected
+
+// Actually this test is about getting rid of assertion happenning while creating quick fixes
+// See KT-10409
+interface Pipeline<TPipeline> {
+    fun pipe(block: Pipeline<TPipeline, String>)
+}
+
+abstract class IterablePipeline<T> : Pipeline<T> {
+    override fun pipe(block: Pipeline<T>) {
+    }
+}
diff --git a/idea/tests/org/jetbrains/kotlin/idea/quickfix/QuickFixTestGenerated.java b/idea/tests/org/jetbrains/kotlin/idea/quickfix/QuickFixTestGenerated.java
index 1cfb3c91a73..2b228ca8a91 100644
--- a/idea/tests/org/jetbrains/kotlin/idea/quickfix/QuickFixTestGenerated.java
+++ b/idea/tests/org/jetbrains/kotlin/idea/quickfix/QuickFixTestGenerated.java
@@ -4853,6 +4853,12 @@ public class QuickFixTestGenerated extends AbstractQuickFixTest {
             doTest(fileName);
         }
 
+        @TestMetadata("kt10409.kt")
+        public void testKt10409() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("idea/testData/quickfix/modifiers/kt10409.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("nestedClassNotAllowed.kt")
         public void testNestedClassNotAllowed() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("idea/testData/quickfix/modifiers/nestedClassNotAllowed.kt");