diff --git a/src/main/java/org/jpeek/graph/XmlMethodArgs.java b/src/main/java/org/jpeek/graph/XmlMethodArgs.java
index ea6236ff..4fc4e9f9 100644
--- a/src/main/java/org/jpeek/graph/XmlMethodArgs.java
+++ b/src/main/java/org/jpeek/graph/XmlMethodArgs.java
@@ -54,6 +54,9 @@ final class XmlMethodArgs implements Text {
 
     @Override
     public String asString() throws IOException {
-        return new Joined(":", this.method.xpath("args/arg/@type")).asString();
+        return new Joined(
+            ":",
+            this.method.xpath("op/args/arg/@type")
+        ).asString();
     }
 }
diff --git a/src/main/java/org/jpeek/graph/XmlMethodCall.java b/src/main/java/org/jpeek/graph/XmlMethodCall.java
index 34d80f43..ea9714d1 100644
--- a/src/main/java/org/jpeek/graph/XmlMethodCall.java
+++ b/src/main/java/org/jpeek/graph/XmlMethodCall.java
@@ -32,11 +32,8 @@
  * Serialize method call to a string.
  *
  * @since 1.0
- * @todo #440:30min This class XmlMethodCall should be made public
- *  and a test class named XmlMethodCallTest should be added to
- *  verify its behaviour.
  */
-final class XmlMethodCall implements Text {
+public final class XmlMethodCall implements Text {
 
     /**
      * XML Call operation.
@@ -55,7 +52,7 @@ final class XmlMethodCall implements Text {
     @Override
     public String asString() throws IOException {
         return new Joined(
-            "", this.call.xpath("name/text()").get(0),
+            "", this.call.xpath("op/name/text()").get(0),
             ".", new XmlMethodArgs(this.call).asString()
         ).asString();
     }
diff --git a/src/test/java/org/jpeek/graph/XmlMethodCallTest.java b/src/test/java/org/jpeek/graph/XmlMethodCallTest.java
new file mode 100644
index 00000000..12981803
--- /dev/null
+++ b/src/test/java/org/jpeek/graph/XmlMethodCallTest.java
@@ -0,0 +1,62 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017-2019 Yegor Bugayenko
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package org.jpeek.graph;
+
+import com.jcabi.xml.XMLDocument;
+import java.io.IOException;
+import org.cactoos.text.Joined;
+import org.hamcrest.core.IsEqual;
+import org.junit.jupiter.api.Test;
+import org.llorllale.cactoos.matchers.Assertion;
+
+/**
+ * Test case for {@link XmlMethodCall}.
+ * @since 0.44
+ */
+final class XmlMethodCallTest {
+
+    @Test
+    void hasClassMethodAndArgs() throws IOException {
+        new Assertion<>(
+            "Must have class name, method name and args.",
+            new XmlMethodCall(
+                new XMLDocument(
+                    new Joined(
+                        "",
+                        "<op code=\"call\">",
+                        "  <name>OverloadMethods.methodOne</name>",
+                        "  <args>",
+                        "    <arg type=\"Ljava/lang/String\">?</arg>",
+                        "    <arg type=\"Z\">?</arg>",
+                        "  </args>",
+                        "</op>"
+                    ).asString()
+                )
+            ).asString(),
+            new IsEqual<>(
+                "OverloadMethods.methodOne.Ljava/lang/String:Z"
+            )
+        ).affirm();
+    }
+}