diff --git a/idea/src/org/jetbrains/kotlin/idea/refactoring/changeSignature/KotlinChangeSignatureUsageProcessor.kt b/idea/src/org/jetbrains/kotlin/idea/refactoring/changeSignature/KotlinChangeSignatureUsageProcessor.kt
index 7d1c53193cf..3aff0e31f1e 100644
--- a/idea/src/org/jetbrains/kotlin/idea/refactoring/changeSignature/KotlinChangeSignatureUsageProcessor.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/refactoring/changeSignature/KotlinChangeSignatureUsageProcessor.kt
@@ -95,6 +95,8 @@ class KotlinChangeSignatureUsageProcessor : ChangeSignatureUsageProcessor {
     private var initializedOriginalDescriptor: Boolean = false
 
     override fun findUsages(info: ChangeInfo): Array<UsageInfo> {
+        if (!canHandle(info)) return UsageInfo.EMPTY_ARRAY
+
         initializedOriginalDescriptor = false
 
         val result = HashSet<UsageInfo>()
@@ -115,6 +117,11 @@ class KotlinChangeSignatureUsageProcessor : ChangeSignatureUsageProcessor {
         return result.toTypedArray()
     }
 
+    private fun canHandle(changeInfo: ChangeInfo) =
+        changeInfo is KotlinChangeInfo
+                || changeInfo is KotlinChangeInfoWrapper
+                || changeInfo is JavaChangeInfo
+
     private fun findAllMethodUsages(changeInfo: KotlinChangeInfo, result: MutableSet<UsageInfo>) {
         loop@ for (functionUsageInfo in changeInfo.getAffectedCallables()) {
             when (functionUsageInfo) {