diff --git a/xml/dom-openapi/src/com/intellij/util/xml/converters/values/NumberValueConverter.java b/xml/dom-openapi/src/com/intellij/util/xml/converters/values/NumberValueConverter.java
index 7445d9a1559b..7aa3b9d33aef 100644
--- a/xml/dom-openapi/src/com/intellij/util/xml/converters/values/NumberValueConverter.java
+++ b/xml/dom-openapi/src/com/intellij/util/xml/converters/values/NumberValueConverter.java
@@ -19,14 +19,17 @@ package com.intellij.util.xml.converters.values;
 import com.intellij.util.xml.ConvertContext;
 import com.intellij.util.xml.Converter;
 import com.intellij.util.xml.DomBundle;
+import com.intellij.util.xml.ResolvingConverter;
 import org.jetbrains.annotations.NonNls;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 import java.math.BigDecimal;
 import java.math.BigInteger;
+import java.util.Collection;
+import java.util.Collections;
 
-public class NumberValueConverter extends Converter<String> {
+public class NumberValueConverter extends ResolvingConverter<String> {
 
   private final Class myNumberClass;
   private final boolean myAllowEmpty;
@@ -57,6 +60,12 @@ public class NumberValueConverter extends Converter<String> {
           DomBundle.message("value.converter.format.exception", s, myNumberClass.getName());
   }
 
+  @NotNull
+  @Override
+  public Collection<? extends String> getVariants(ConvertContext context) {
+    return Collections.emptySet();
+  }
+
   @Nullable
   public static Number parseNumber(@NotNull String text, @NotNull Class targetClass) {
     try {