diff --git a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/decompiler/stubBuilder/TypeClsStubBuilder.kt b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/decompiler/stubBuilder/TypeClsStubBuilder.kt
index 2a681583cc0..6cbf67bc893 100644
--- a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/decompiler/stubBuilder/TypeClsStubBuilder.kt
+++ b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/decompiler/stubBuilder/TypeClsStubBuilder.kt
@@ -124,6 +124,8 @@ class TypeClsStubBuilder(private val c: ClsStubBuilderContext) {
     }
 
     private fun getTypeModifiersAsWritten(type: Type): Set<KtModifierKeywordToken> {
+        if (!type.hasClassName() && !type.hasTypeAliasName()) return emptySet()
+
         val result = hashSetOf<KtModifierKeywordToken>()
         val classId = c.nameResolver.getClassId(if (type.hasClassName()) type.className else type.typeAliasName)