diff --git a/jps/model/src/org/jetbrains/ether/dependencyView/PersistentMultiMaplet.java b/jps/model/src/org/jetbrains/ether/dependencyView/PersistentMultiMaplet.java
index 0ac8cdfc1168..e5497ab73994 100644
--- a/jps/model/src/org/jetbrains/ether/dependencyView/PersistentMultiMaplet.java
+++ b/jps/model/src/org/jetbrains/ether/dependencyView/PersistentMultiMaplet.java
@@ -69,7 +69,7 @@ class PersistentMultiMaplet<K, V> implements MultiMaplet<K, V> {
   @Override
   public void replace(K key, Collection<V> value) {
     try {
-      if (value == null || value.isEmpty()) {
+      if (value == null) {
         myMap.remove(key);
       }
       else {
diff --git a/jps/model/src/org/jetbrains/ether/dependencyView/TransientMultiMaplet.java b/jps/model/src/org/jetbrains/ether/dependencyView/TransientMultiMaplet.java
index 9a2792e15558..71aafd8696c8 100644
--- a/jps/model/src/org/jetbrains/ether/dependencyView/TransientMultiMaplet.java
+++ b/jps/model/src/org/jetbrains/ether/dependencyView/TransientMultiMaplet.java
@@ -74,7 +74,7 @@ class TransientMultiMaplet<K, V> implements MultiMaplet<K, V> {
 
   @Override
   public void replace(K key, Collection<V> value) {
-    if (value == null || value.isEmpty()) {
+    if (value == null) {
       myMap.remove(key);
     }
     else {