diff --git a/idea/src/org/jetbrains/kotlin/idea/inspections/collections/FunctionUtils.kt b/idea/src/org/jetbrains/kotlin/idea/inspections/collections/FunctionUtils.kt
index 92984d2c4de..1ca976a1569 100644
--- a/idea/src/org/jetbrains/kotlin/idea/inspections/collections/FunctionUtils.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/inspections/collections/FunctionUtils.kt
@@ -59,7 +59,7 @@ fun KtCallExpression.isCalling(fqName: FqName, context: BindingContext = analyze
 
 fun KtCallExpression.isCalling(fqNames: List<FqName>, context: BindingContext = analyze(BodyResolveMode.PARTIAL)): Boolean {
     val calleeText = calleeExpression?.text ?: return false
-    val fqName = fqNames.firstOrNull { fqName -> fqName.asString().takeLastWhile { it != '.' } == calleeText } ?: return false
+    val fqName = fqNames.firstOrNull { fqName -> fqName.shortName().asString() == calleeText } ?: return false
     return getResolvedCall(context)?.isCalling(fqName) == true
 }